50 Patent Strategies That Have Saved, Transformed, or Propelled Companies to the Top

Strategy · Patents · Corporate Governance

From Lou Gerstner’s turnaround of IBM to Qualcomm’s licensing model, Trumpf’s rise to become the global leader in lasers, and Polaroid’s $925 million victory over Kodak. A detailed analysis of documented cases in which executives have used a well-thought-out patent strategy to steer their companies from difficult situations to strong market positions—and what you can learn from them for your own business.

Rolf Claessen, Patent Attorney and Partner, Michalski Hüttermann & Partner Patent Attorneys mbB

Lou Gerstner at IBM: License Revenue as a Lifeline
IBM After Gerstner: $27 Billion from Patent Licenses
Irwin Jacobs at Qualcomm: A Bet on CDMA That Generated Billions
The Rockstar Consortium: How Apple, Microsoft, and Ericsson Outbid Google
Antonio Perez at Kodak: Patent Portfolio as a Way Out of Bankruptcy
James Dyson vs. Hoover: The maverick who defeated a corporate giant with his strong portfolio of patents
Elon Musk at Tesla: Opening Up Patents to Build the Market
Toyota and Fuel Cells: 5,680 Patents to Avoid the Chicken-and-Egg Dilemma
Edwin Land at Polaroid: $925 million in damages from Kodak
Steve Jobs and Apple: Design Patents as a Weapon Against Samsung
King Gillette: Patents as the Foundation of a Business Model
John Chen at BlackBerry: From Smartphone Manufacturer to Licensor
Pekka Lundmark at Nokia: 1.4 billion euros in licensing revenue following the hardware collapse
Pfizer and the Lipitor Patent Cliff: How to Manage a 10-Billion Loss
Philips and Signify: The EnabLED Licensing Program
Xerox PARC: The Most Instructive Defeat in IP History
Nortel in Bankruptcy: $4.5 Billion for a Defunct Company
Kodak as the Loser: The Other Side of the Polaroid Coin
Berthold Leibinger at Trumpf: From Design Engineer to Global Leader in Lasers
Andreas Stihl: 2,800 Patents as the Foundation of Global Chainsaw Market Leadership
Fritz Sennheiser: From Testing Lab to Supplier to the World’s Stages
Uğur Şahin and Özlem Türeci at BioNTech: How Moderna Lost Its Own Patent
Robert Bosch: 6,700 Patents Per Year as a Strategy for Technological Leadership
Martin Herrenknecht: How to Keep Elon Musk in Check in Tunnel Construction
Viessmann: From Condensing Boilers to a 12-Billion Exit
Artur Fischer: The “Patent King” Who Held Almost as Many Patents as Edison
Alfred Kärcher: How a Hot-Water High-Pressure Washer Became a Verb
Moderna Loses Ground in Europe: The Downside of the mRNA Patent Offensive
Larry Page and Google: $12.5 Billion for 17,000 Patents—and Why It Was Worth It
Carl Zeiss SMT: 2,000 patents on EUV mirrors, without which modern chips cannot be manufactured
Festo: The Valve Manifold and How a Family-Owned Company Has Secured 2,800 Patents
Krones: 7,058 Patents Secure a 25 Percent Share of the Global Beverage Filling Market
Miele: Gentle-Wash Drum, Cutlery Drawer, and the “Always Better” Principle
Wago: How a Patent Purchased in 1951 Became a Global Spring-Clamp Empire
AbbVie and Humira: 247 Patents as a Fortress for the $200-Billion Blockbuster
Merck and Keytruda: How to Prepare for a $30 Billion Patent Cliff
Bayer and Roundup: When a Patent Purchase Turns Into a $20 Billion Trap
ASML: How a Dutch Company Became the Patent Monopolist of the Chip Industry
Heraeus: 5,500 Patents, Quartz Glass, and Platinum Smelting—360 Years of Success
Schaeffler: The 1950 needle roller cage patent as the foundation of a rolling-bearing empire
Knorr-Bremse: How the Kunze-Knorr Freight Train Brake Became the European Standard
Rohde & Schwarz: High-Frequency Measurement Technology as a Niche Strategy for a Family-Owned Company
Haloid and Chester Carlson: How a Photographic Paper Manufacturer Turned a Rejected Patent into a Billion-Dollar Business
Bell Labs and the Transistor: When Disclosure Is Wiser Than Blocking
Edison vs. Tesla: The War of Currents as the First Major Patent Battle in Industrial History
Avanci: How a SEP Pool Saved the Automotive Industry from a Flood of Lawsuits
MPEG-LA: How a Patent Pool Turned Codec Chaos into a Global Licensing Standard
Huawei After the U.S. Ban: How a Corporation Turned Its Patents Into a Lifeline
CATL: Controlling the Global Battery Value Chain with 20,000 Patents
BYD: How a Battery Manufacturer Became a Global Automotive Group Through Vertical Integration and Patents

→ What These 50 Cases Mean for Your Business

For many entrepreneurs, patents are a cost factor that they just have to put up with. A necessary evil for the R&D department. This attitude costs money, market share, and sometimes the entire company. The 50 cases in this article demonstrate the opposite: here, patents are the lever that has transformed a precarious situation into a position of strength. In some cases, they have quite simply saved the company.

For over two decades, I have been working with companies that are wondering whether patents are worth it for them. The answer almost never depends on the legal situation. It depends on the strategy that a CEO, a head of IP, or an R&D director develops and implements for their company. The following cases come from a variety of industries, company sizes, and time periods. What they have in common is that in each individual case, it’s clear how a specific person made a specific decision that ultimately determined the company’s success.

I have presented these cases in such a way that, after reading them, you will have three things: reliable facts with sources, a clear understanding of which strategy worked in each case, and concrete insights you can apply to your own situation. Anyone in a leadership role at an innovative company with 100 to 1,000 employees will recognize their own company in at least one of these cases.

Case 01 – Lou Gerstner at IBM: Licensing Revenue as a Lifeline for a Struggling Corporation (Turnaround · Technology)

The situation: In the early 1990s, IBM posted losses totaling $13 billion over a two-year period. The mainframe business accounted for over 90 percent of revenue and was in freefall. Analysts recommended breaking up the company.

The result: Under Gerstner’s leadership, mainframe sales rose by 41 percent in 1994 and by 60 percent in 1995. By the end of his tenure, the company employed 65,000 more people than before—and had returned to profitability.

Who and what

Lou Gerstner joined IBM from RJR Nabisco in 1993. He was not a technologist, which many observers saw as a disadvantage. Gerstner himself saw it differently: He viewed IBM not as a product company, but as a customer-focused company in an industry that was undergoing tectonic shifts.

The Strategy

Gerstner relied on two interlocking pillars. First, he opened IBM up to open standards such as J2EE and Web Services, thereby breaking with the company’s tradition of proprietary technology. Second, and this is the crucial part in our context: He began to systematically monetize IBM’s massive patent portfolio.

The idea behind it was both simple and radical. Over the course of decades, IBM had accumulated more than 20,000 U.S. patents, most of which were gathering dust in drawers. Gerstner instructed his IP department to treat these assets as a standalone source of revenue. The company began actively licensing technology—even to competitors, even in fields outside its core business. At the same time, IBM established a consulting business for patent and technology licensing to sell its own expertise to outside parties.

Why That Worked Strategically

Three reasons explain this success in detail. First, the margin mechanism. The R&D costs for the licensed technologies had already been amortized. As a result, nearly every dollar in licensing revenue flowed directly into the income statement. With licensing revenue of approximately one billion dollars per year, this represented an EBIT contribution equivalent to ten billion dollars in hardware revenue at a standard margin.

Second, the dynamics of the negotiations. IBM used the breadth of its patent portfolio as a starting point for negotiations with other manufacturers—and regularly offered a package deal: We’ll license thirty patents to you, you’ll license twenty to us, and the difference will be settled in cash. Since IBM’s portfolio was, on average, broader than that of its counterparts, IBM pocketed the difference. This cross-licensing model was not very common in the IT industry in the 1990s; IBM made it a standard tool.

Third, the link to the service business. Gerstner often tied licensing negotiations to larger service contracts. Anyone who obtained an IBM patent license automatically became a candidate for IBM Global Services. In this way, a defensive licensing demand became an offensive sales channel.

What we take away from this

A patent portfolio is not a passive asset. It is an active tool that can generate cash flow if managed seriously. IBM already owned the patents. What was missing was a leader who recognized them as a source of revenue and created the structures to manage that source of revenue.

What can a company learn from this?

Most of the companies I work with have more patents than they use commercially. Anyone who takes an honest look at their portfolio will regularly find intellectual property rights that could be licensed to companies in related industries or to complementary providers. This isn’t just theory—it’s a task for the IP department.

Sources: Knowledge at Wharton · MBA Knowledge Base · Industry Week · Britannica

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Case 02 – IBM After Gerstner: How a Patent Portfolio Generated $27 Billion (Monetization · Technology)

The situation: By the mid-1990s, IBM had stabilized, but it needed predictable, high-margin cash flow to finance its transformation. At the same time, competitors were expanding their own portfolios.

The result: From 1996 to 2020, IBM generated approximately $27 billion in direct IP revenue. For 28 consecutive years, IBM topped the list of companies with the most U.S. patents granted.

The Strategy in Detail

Jerry Rosenthal, who served as Vice President of Intellectual Property and Licensing, and later William LaFontaine as General Manager of IP, expanded the licensing business into a standalone profit center. The rationale behind this move: licensing revenue is high-margin because the research costs for the underlying technology have already been written off. Nearly every dollar of licensing revenue flows directly into the income statement.

IBM did not merely respond passively to inquiries. The company actively identified market participants whose products infringed on IBM patents and offered licenses. In 2018, IBM sued Groupon for infringing four e-commerce patents from the 1980s. The jury awarded IBM $83 million; the dispute was settled for $57 million. At the same time, Google, Amazon, Facebook, Twitter, and LinkedIn licensed IBM patents.

The Three Levels of the System

IBM’s licensing business operated on three levels simultaneously, each of which supported the others. The first level consisted of cross-licensing deals with the major hardware manufacturers—HP, Compaq, Dell, and Samsung. These deals were not primarily about cash, but rather about mutually safeguarding each other’s product development. The second level consisted of unilateral licensing agreements with companies that had nothing comparable to offer but relied on IBM patents—this is where the large sums of cash flowed. The third level consisted of enforcement lawsuits against companies that refused to license. These lawsuits served primarily as a signal to the second level that IBM was prepared to go to court.

Why It Worked

IBM had what lawyers call a “patent godfather”: a portfolio of over 38,000 active patents and thousands of existing license agreements. The sheer size and breadth of this portfolio made it nearly impossible for licensees to challenge individual patents. Any company that wanted to take on IBM would have been taking on a Hydra. Even if it had managed to invalidate three or five patents, IBM would have brought another fifteen to the table.

The second factor in its success was consistent new patent production. For 28 consecutive years, IBM topped the list of companies with the most U.S. patents granted. This means that while older patents expired, thousands of new ones were added each year. The portfolio does not age. Licensees who signed a ten-year agreement in 1998 covering specific patent fields were faced with a choice in 2008: either sign a new agreement that included the patents added in the meantime or withdraw from the relevant market segments.

The Downside

After 2016, direct licensing revenue plummeted. In 2019 and 2020, it stood at only about $600 million per year. The reasons included Supreme Court rulings, the America Invents Act, and a more assertive tech industry that was willing to go to court. Airbnb and Chewy engaged in public disputes with IBM. This highlights a limitation of the model: A licensing business can only be as effective as the legal system in which it operates. When courts scrutinize patents more strictly and declare some software patents invalid, the threat landscape on which the model relies shrinks.

What can a company learn from this?

A licensing program requires attention and maintenance. If you license a patent and then forget about it, you’re leaving money on the table. If you consistently identify which competitors are using your portfolio, you’ll have an additional source of revenue that will show up in your operating income.

Sources: IPCloseUp · IPWatchdog · The IP Center · Medium Leadership Nexus · Spokesman

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Case 03 – Irwin Jacobs at Qualcomm: A Bet on Technology That Became a Licensing Empire (Business Model · Telecommunications)

The starting point: Qualcomm, founded in 1985 by Irwin Jacobs and six co-founders with $800,000 in start-up capital, bet on CDMA—a technology developed from World War II torpedo guidance systems. Most major mobile network operators had opted for the competing TDMA standard. Observers considered CDMA to be technically superior but commercially unrealistic.

The result: CDMA became the foundation of the 3G and 4G mobile communications standards. By 2007, Qualcomm’s licensing business was already generating $2.77 billion, or 31 percent of the company’s total revenue. To this day, the licensing business remains a key profit driver.

The Double Bet

Jacobs made two decisions, both of which were bold. First, he committed the entire company to CDMA, even though the rest of the industry was heading in a different direction. Jacobs, a former professor of electrical engineering at MIT, believed that technical superiority would prevail in the long run. Qualcomm aggressively filed for patents and built a dense protective network around its core technology.

Second, Jacobs made a decision that continues to shape the business model to this day. Instead of building cell phones himself and thus competing directly with Samsung, Ericsson, or Motorola, he decided to license the patents. Any manufacturer that wanted to build a CDMA device had to obtain a license from Qualcomm. Qualcomm later supplemented this model with its own chipsets, but the licensing revenue formed the foundation.

Why Standardization Efforts Were the Real Lever

What drove this model was Qualcomm’s work in standards-setting bodies. The company positioned its technology in such a way that it was incorporated into the standards. As a result, Qualcomm’s patents became standard-essential patents (SEPs), which every manufacturer building standards-compliant devices must implement. The leverage is enormous: Anyone who wants to build a 3G- or 4G-compliant chipset cannot bypass Qualcomm.

The strategic subtlety lies in the fact that Qualcomm did not simply hold patents on CDMA, but actively worked to ensure that CDMA became the standard. That meant years of work within 3GPP, the ITU, and regional standards bodies. Jacobs sent engineers to these meetings, who simultaneously wrote the technical documentation and coordinated the patent applications. When a technical element was later incorporated into the standard, Qualcomm was already positioned with a patent covering it. That was no coincidence—it was the result of a process spanning decades.

Per-Device Royalties as a Scaling Lever

The second element of Qualcomm’s business model—one that is often underestimated—is per-device billing. Qualcomm does not charge a flat fee per manufacturer, but rather a percentage of the device price. For a $500 smartphone, that could be five percent—or $25 per device. With one billion smartphones sold per year, that translates to theoretical royalty revenue in the billions. Qualcomm negotiates these rates downward, but the basic structure remains the same: the more devices the industry sells, the more Qualcomm earns. This is one of the few cases in which a supplier automatically benefits from the market expansion of its customers without having to invest anything itself.

R&D as a Cost Center of the Strategy

In 2010, Qualcomm invested 23 cents of every dollar in revenue in research and development—a total of $2.55 billion. This investment went directly toward new patent applications in the U.S., Europe, China, Japan, South Korea, Brazil, India, and Taiwan. Today, Qualcomm licenses its technology to over 190 manufacturers worldwide. This R&D ratio is no coincidence: Jacobs recognized early on that the licensing model only works as long as Qualcomm maintains a technological lead. As soon as competitors catch up, the portfolio loses its SEP status in the next generation of standards. Therefore, Qualcomm must always stay one to two generations ahead of the market.

What can a company learn from this?

Not every company can become a key player in global standardization. But the basic principle holds true: Companies that invest early in standardization efforts within their industry—and contribute their own technology in the process—can secure a unique position for decades to come. In many niche markets, German industrial standards are still up for grabs—and significantly easier to influence than international telecommunications standards.

Sources: LawFuel / American Lawyer · Acquired Podcast · Irwin Jacobs’ Testimony Before the U.S. Senate · Quartr · Business Model Analyst

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Case 04 – The Rockstar Consortium: How Six Competitors Jointly Outbid Google (Defense · Consortium)

The background: In 2011, the insolvent telecommunications equipment manufacturer Nortel put approximately 6,000 patents up for sale. These included core patents for 4G/LTE, wireless, networking, and semiconductors. Google made the opening bid of $900 million and was considered the favorite.

The result: A consortium consisting of Apple, Microsoft, Ericsson, Sony, EMC, and Research In Motion paid $4.5 billion—five times Google’s bid—thereby blocking the most important mobile communications standard from being adopted by Android.

The Logic of the Coalition

The six consortium partners were competitors. In other proceedings, they were at odds with one another. But on one point they were in agreement: No one wanted Google or an NPE (non-practicing entity) to get its hands on 6,000 highly relevant mobile communications patents. The consortium structure served as a lesson: By pooling their resources, each individual partner was able to pay less than they would have for an independent acquisition. At the same time, the partners neutralized the patents among themselves through cross-licensing.

Why the price was so much higher than market value

Nomura analyst Richard Windsor called the bid “chunky” and expected the consortium to recoup its investment through lawsuits against Android manufacturers. The real reason for the high bid, however, was strategic in nature. The consortium did not calculate the purchase price against the expected licensing revenue, but rather against the damage Google could have inflicted with these patents. If Google had used Nortel’s LTE patents against Apple, Microsoft, or RIM, the royalty claims per smartphone could have amounted to double-digit dollar figures. Multiplied by billions of devices over ten years, that amounts to tens of billions of dollars. From this perspective, $4.5 billion was a bargain.

The specific strategic impact

In November 2013, the Rockstar consortium filed a lawsuit against Google, ASUS, HTC, LG, Pantech, Samsung, and ZTE. The strategy was precise: not Google itself, which was technically hard to challenge, but the Android manufacturers. They had to either obtain licenses or defend themselves in court—which drove up production costs per Android device and made the Microsoft-Apple ecosystem relatively more affordable by comparison. The consortium sold the patents in 2014 for $900 million. The $3.6 billion difference was the price the members paid for the strategic impact over three years.

Google’s Double Defeat

During the auction process, Google had submitted bids that included pi-billion dollars and other mathematical constants—an episode that has become legendary in the industry. However, this was not driven by arrogance, but by a technical problem: Google was a software company that had to evaluate a mobile communications standards patent pool without any expertise of its own. When the Rockstar consortium struck, Google, in a panic reaction, bought Motorola Mobility for $12.5 billion—primarily for its patents. The purchase turned out to be a very expensive lesson for Google, which we’ll cover in detail in Case 29.

What can a company learn from this?

Even medium-sized companies can form patent consortia. If a competitor exits the market or a strategically important portfolio is up for sale, it’s worth talking to partners before a financial investor or NPE (non-practicing entity) acquires it. The effort required to draft the contract is manageable. The cost of a missed opportunity, however, is rarely so.

Sources: BBC · Channel Futures · MacRumors · FOSS Patents · IBTimes/Reuters

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Case 05 – Antonio Perez at Kodak: How a Patent Portfolio Helped the Company Weather Bankruptcy (Restructuring · Imaging)

The background: In January 2012, Kodak filed for Chapter 11 bankruptcy protection. The company had $6 billion in debt and urgently needed cash to finance its restructuring. Kodak had originally valued its digital imaging portfolio at $2.6 billion.

The result: In December 2012, Kodak sold approximately 1,100 patents to a consortium of twelve tech companies for $525 million. The sale fulfilled a key requirement for an $830 million financing round and enabled the company to emerge from bankruptcy in early 2013.

The Deal in Detail

The buyers were Apple, Google, Samsung, Microsoft, Facebook, Amazon, BlackBerry, HTC, Fujifilm, Huawei, Adobe, and Shutterfly, organized by the patent aggregators Intellectual Ventures and RPX. Initially, Apple and Google had bid in competing consortia before joining forces. Each of the twelve companies received licensing rights, while Intellectual Ventures acquired the patents.

What Kodak Achieved with This

Kodak was under pressure: A loan of $830 million was contingent on the company generating at least $500 million from patent sales by the end of January 2013. The $525 million fell just short of meeting that condition. Then-CEO Antonio Perez called the sale an “important milestone for a successful emergence” from bankruptcy. As a side effect, all pending patent lawsuits between Kodak and the twelve licensees were settled.

What Kodak Failed to Achieve With This

The price was one-fifth of the original valuation. Bankruptcy Judge Allan Gropper said at the approval hearing, visibly disappointed: “We’re not happy with the price, but the proceedings must continue.” Kodak was forced to sell, and the buyers knew that. That’s the classic dynamic of a distress sale.

What can a company learn from this?

A patent portfolio can serve as a lifeline during a crisis. However, the price is always at its lowest when you need it most. Those who evaluate their portfolio in a timely manner—that is, before the crisis—and at least assess which intellectual property rights they could sell or license will be in a much better position in an emergency than a seller under pressure from insolvency.

Sources: MIT Technology Review · TechCrunch · BBC · iDownloadBlog

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Case 06 – James Dyson vs. Hoover: The Lone Warrior Who Defeated a Corporate Giant with the Power of Patents (Enforcement · Household Appliances)

The background: James Dyson had spent 15 years working on bagless vacuum cleaner technology. He offered to license the technology to major manufacturers—but none of them were interested. In 1999, Hoover launched its own bagless vacuum cleaner featuring cyclone technology: the Triple Vortex.

The result: On October 3, 2000, the British Patent Court ruled that Hoover had infringed Dyson’s European (UK) Patent No. 0042723. Hoover’s counterclaim for invalidation was dismissed. Dyson was awarded approximately five million pounds in damages and was granted an injunction.

The Strategic Importance

The real gain wasn’t in the damages. The case showed the market that Dyson’s patents were sound and that Dyson was prepared to enforce them. Mike Rutter, then Vice President of Europe at Hoover, said on British television: “I regret that Hoover didn’t take the product technology from Dyson back when we could have; otherwise, it would have remained on the shelf and never been used.”

The Foundation of the Patent

Before entering the market, Dyson conducted a comprehensive freedom-to-operate analysis to identify existing patents and strategically position its own intellectual property rights. To date, the company holds nearly 1,000 patents and patent applications covering more than 150 inventions. In 2013, Dyson sued Samsung for infringing a patent on a steering mechanism in cylinder vacuum cleaners.

The Post-Expiry Injunction

What is particularly noteworthy about the Dyson v. Hoover case is that the Patent Court issued an injunction intended to remain in effect beyond the patent’s expiration date to prevent Hoover from capitalizing on a “springboard effect” in the market. This set a precedent in British patent law and demonstrates how far courts are willing to go when infringement is documented.

What can a company learn from this?

A well-drafted patent can stand up to a large corporation. The difference between a patent that everyone ignores and one that results in a cease-and-desist order lies in the quality of the application and the willingness to enforce it when necessary. Both are investment decisions that management must make before competitors copy the invention.

Sources: CMS Law-Now · Casemine · Silicon Republic · Prof. Wurzer IP Case Study

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Case 07 – Elon Musk at Tesla: Opening Up Patents to Build the Market (Ecosystem · Automotive)

The starting point: In 2014, Tesla had a solid patent portfolio but a tiny market. Electric vehicles accounted for less than one percent of new car sales worldwide. Tesla’s problem wasn’t competition from other electric cars—it was the sheer dominance of internal combustion engines.

The result: Tesla became the industry benchmark. Other manufacturers followed suit, the charging infrastructure expanded, and the electric vehicle market reached critical mass. Tesla continues to file patents—it hasn’t abandoned them, but has simply made them available to users acting “in good faith.”

The Decision

In June 2014, Musk published a blog post titled “All Our Patents Belong to You.” The key message: Tesla will not file patent lawsuits against companies that wish to use Tesla’s technology in good faith. Musk’s reasoning: Technological leadership is defined not by patents, but by the ability to attract the most talented engineers.

What Was Really Behind the Opening

The public narrative was altruistic. The strategic logic was more cold-hearted. Tesla benefited from three mutually reinforcing effects.

First, ecosystem development with network effects. The more manufacturers adopted Tesla’s charging standards, the more valuable the Supercharger network became. The more electric vehicles were sold, the cheaper battery cells became for everyone—including Tesla. This is a classic network effect that Tesla, as a small manufacturer, could never have created on its own. The release of the patents was the catalyst that made this effect possible in the first place.

Second, setting standards through the back door. Anyone who used Tesla’s technology was also using Tesla’s engineering philosophy—such as the 400-volt architecture, the battery cell arrangement, or the CCS-compatible charging technology. This made it difficult for competitors to respond later with a fundamentally different architecture. Tesla thus achieved something that is usually the domain of standardization bodies: it established de facto standards without having to attend a single committee meeting. The price it paid was the release of its patents. The reward was architectural dominance over an entire industry segment.

Third, the minor caveat. The “good faith” clause is cleverly worded from a legal standpoint. Anyone who uses Tesla’s patents may not sue Tesla, may not enforce their own patents against third parties, may not copy Tesla’s designs, and must, as a general rule, share their own developments. This open approach is effectively a cross-licensing model with additional obligations. Tesla has not, in fact, relinquished ownership of its patents, but has instead created a new type of contract that provides Tesla with more benefits than traditional licensing agreements ever could have.

Why Wall Street Misunderstood the Strategy

Wall Street analysts called Musk’s 2014 decision “stupid.” They were thinking in terms of traditional licensing logic: Patents are valuable because they keep competitors out. What they overlooked: In a market that is just emerging, the greatest danger is not competition, but the very absence of the market itself. In 2014, Tesla had less than one percent market share—not because competitors were copying Tesla’s technology, but because there was virtually no market for electric cars. A traditional patent strategy would have prevented the market from growing. Opening up the patents was a tool for growth, not a defensive measure.

What Tesla Is Actually Doing Next

Tesla continues to file new patents. Examples include the WO2020/028625 patent family on gesture-based steering wheel interfaces, WO2019/241869 on electrolyte additives in lithium-ion batteries, and WO2019/173891 on two-additive electrolyte systems. The opening referred to the 2014 portfolio; new intellectual property rights remain negotiable. Tesla could revise this strategy at any time if the market is ready and traditional patent enforcement once again promises greater economic benefits.

What can a company learn from this?

For medium-sized companies, too, the controlled opening of individual patents can make strategic sense if it helps them build an ecosystem around their technology. The key lies in how the terms of the license are formulated. Anyone who does this without legal counsel risks competitors taking advantage of the license without providing anything in return.

Sources: Harvard Business Review · Venner Shipley · Wall Street Pit · INFORMS

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Case 08 – Toyota and the Fuel Cell: 5,680 Patents to Avoid the Chicken-and-Egg Dilemma (Ecosystem · Automotive)

The starting point: In early 2015, Toyota launched the Mirai, the first mass-produced fuel-cell car. The problem: There were only eleven hydrogen refueling stations in California. Without infrastructure, there are no sales; without sales, there is no infrastructure.

The result: On January 5, 2015, at CES, Toyota made 5,680 fuel cell patents available royalty-free—with a time limit through 2020 for vehicle patents and no time limit for infrastructure patents. Several automakers and infrastructure providers followed suit.

Exactly what Toyota disclosed—and what it didn’t

Bob Carter, Senior Vice President of Automotive Operations at Toyota, announced the release. The 5,680 patents were divided into approximately 1,970 patents related to fuel cell stacks, 290 related to high-pressure hydrogen tanks, 3,350 related to control software, and 70 related to hydrogen production and supply. The last 70 remained open indefinitely—all others only until 2020. This distinction was a strategic calculation: Toyota wanted to permanently remove the infrastructure patents from the market because infrastructure requires long-term investment. For vehicle patents, however, Toyota wanted to retain the option of returning to a traditional licensing policy after 2020, should the market be mature enough by then.

The Logic of Approval: A Systematic Solution to the Chicken-and-Egg Problem

Toyota’s problem was the classic infrastructure dilemma. No customer buys a car they can’t refuel. No operator builds refueling stations without cars. With the Mirai in 2015, Toyota had a single product in a market that didn’t structurally exist. A traditional licensing strategy—where other manufacturers pay fees for fuel cell know-how—would have stifled the market. The fees would have made Ford’s and Honda’s fuel cell cars more expensive, the number of vehicles would have remained small, and infrastructure investors would have stayed away.

Toyota made a cold, hard calculation: A small market share in a large hydrogen market is more valuable than a 100 percent market share in a nonexistent market. As the global market leader in fuel cell vehicles, Toyota would automatically capture a substantial share of any growth—even without charging licensing fees.

The Similarity to Tesla—and the Key Difference

Half a year before Toyota, Tesla had opened up its patents (see Case 7). Commentators called Toyota’s move a reaction to Tesla. This overlooks the strategic difference: Tesla opened up its patents indefinitely and across all areas of the electric vehicle ecosystem. Toyota, on the other hand, opened its patents only for a limited time and only in those areas where doing so was intended to solve the chicken-and-egg problem. This is patent strategy at a high level: it’s not a question of “open source, yes or no,” but rather a precise differentiation of which patents are opened, for how long, and in which fields.

The Difference from Ford

Ford licenses hybrid patents for a fee. The technology is established, and the market is mature. Toyota first had to build the market. This explains the different licensing strategies based on the same principle: patent strategy follows market maturity. Toyota itself also charges licensing fees for its classic hybrid patents—because the hybrid market is established. Thus, the same company pursues different strategies in different technology fields, depending on the maturity of the respective market.

What Actually Happened After 2015

The hydrogen ecosystem grew significantly more slowly than Toyota had hoped. Hyundai followed with the Nexo, and Honda with the Clarity. The number of hydrogen refueling stations worldwide rose to about 700 by 2020—far short of Toyota’s expectations. But Toyota achieved its key goal: To this day, the company remains the leader in fuel cell vehicle technology and patents. If the market accelerates in the coming years due to regulatory decisions, Toyota will be at the forefront.

What can a company learn from this?

Anyone who brings a truly new technology to market often faces the same dilemma as Toyota. Individual patents can be selectively licensed to attract partners for infrastructure development. Other core patents remain protected. This distinction—what to open up and what to keep closed—is the real strategic challenge.

Sources: TIME · The Register · IPWatchdog · LiveScience · Chief Executive

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Case 09 – Edwin Land at Polaroid: $925 Million in Damages from Kodak (Enforcement · Photography)

The background: In 1976, Kodak entered the instant photography market—after 28 years of Polaroid’s monopoly. Kodak’s engineers were convinced they had found a way around Polaroid’s patents. Kodak had previously supplied Polaroid with film negatives and reagents for years and possessed detailed knowledge of instant photography chemistry.

The result: In 1985, the U.S. District Court in Boston ruled that Kodak had infringed on seven of Polaroid’s twelve patents. Kodak was barred from the instant photography business. In 1991, a damages award of $925 million followed—the largest patent infringement lawsuit in U.S. history at that time.

The Patent Fortress: Why Kodak Couldn’t Get Around It

Edwin Land had built a patent fortress around instant photography technology, the density of which is rare in industrial history. The chemistry of the self-developing films, the layered structure of the negatives, the mechanics of the camera shutter release, the development process involving the reagents—every single element was protected by multiple patents. Land consistently implemented a principle that is known today as the “picket fence” strategy: Instead of protecting an invention with a single patent, one surrounds it with a fence of many closely related intellectual property rights. Anyone attempting to circumvent the core invention will inevitably run up against one of the neighboring patents.

Kodak’s engineers tried to do just that. They developed their own chemistry, their own film structure, and their own camera mechanics—and still ran afoul of seven of the twelve Polaroid patents. That’s no coincidence. If the web of intellectual property rights is woven tightly enough, there’s no practical way to get around it.

Land’s personal focus as a driver of the process

Land viewed Kodak’s entry into the market as a personal betrayal, not just a commercial threat. Kodak had previously supplied Polaroid with film negatives and reagents for years and was intimately familiar with Polaroid’s technology. This emotional factor was strategically important: Land was prepared to fight a legal battle for 15 years—a battle that most board members would have settled long ago. Polaroid rejected several settlement offers. The corporate culture was committed to seeing the case through to the end.

The Length of the Proceedings as a Strategy

Fifteen years passed between the filing of the lawsuit in 1976 and the final judgment awarding damages in 1991. In 1986, Polaroid obtained an injunction that forced Kodak to cease all instant film production and repurchase cameras that had already been sold—because customers could no longer obtain film. Kodak used this ten-year delay between the filing of the lawsuit and the injunction to gain market share. The injunction came at a time when Kodak’s instant photography business was already substantial. The economic damage caused by the injunction—buying back the cameras, compensating customers, and shutting down the factories—was thus considerably greater than it would have been at an earlier stage of the proceedings.

The Economics of 925 Million Dollars

The $925 million was less than the $2.5 billion some Wall Street analysts had expected, and far less than the $5.7 billion Polaroid had sought. Kodak avoided the maximum penalty because Polaroid was unable to prove willful infringement. Nevertheless, it sent a signal to the entire industry: U.S. courts were willing to value patents in the nine-figure range—and that is precisely what triggered the wave of patent lawsuits that shaped the tech industry over the next two decades. The Polaroid ruling effectively marked the beginning of the modern patent litigation system in the U.S.

The bitter irony

In 1991, Polaroid received one billion dollars, yet it was still insolvent ten years later. Instant photography was overtaken by digital technology. Land had already stepped down from day-to-day operations in 1982; his successors had failed to invest the $925 million in digital photography. That is the real tragedy of the case: with the damages, Polaroid had the war chest to build the next generation of technology. Instead, the company chose to pay out dividends and reinvest in its existing business model. Patents protect against imitators, but not against technological revolutions—nor against strategic lethargy following a legal triumph.

What can a company learn from this?

A patent fortress is only as good as the market it protects. Anyone operating in a stagnant or shrinking market should expand their IP strategy into adjacent technology fields at an early stage. Polaroid could have used the damages to finance its move into digital photography. That didn’t happen because management remained fixated on its traditional business for too long.

Sources: Toronto Metropolitan University Archives · Mass Moments · IPWatchdog · Steve Blank · TIME

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Case 10 – Steve Jobs and Apple: Design Patents as a Weapon Against Samsung (Enforcement · Consumer Electronics)

The background: Samsung launched the Galaxy S in early 2010. Jobs considered it an illegal copy of the iPhone. Since Samsung was also one of Apple’s key component suppliers, both sides initially sought a negotiated settlement.

The result: In August 2012, a U.S. jury awarded Apple $1.05 billion in damages. After several rounds of appeals and a 2016 Supreme Court ruling, Apple ultimately ended up with a lower—but still nine-figure—amount. Samsung’s stock fell 7 percent following the ruling, costing the company $12 billion in market value.

The Design Patent Strategy

Most companies underestimate the importance of design patents. Not Apple. As early as 2007, before the iPhone launch, Jobs had already filed several design patents covering the device’s shape, front design, and app icon layout. The patents were tailored to protect key aesthetic elements without getting bogged down in technical details. That was precisely the level at which Samsung copied them.

Why Design Patents Were the Superior Weapon

Samsung had its own proprietary technical solutions. The touchscreen drivers, the processor architecture, the wireless modems—everything was either developed in-house or licensed. If Apple had filed a lawsuit on a technical level, the case would have become mired in years of discussions about patent claims, implementation details, and workarounds. Instead, Apple attacked on a level where Samsung had clearly copied: the product’s visual language. The rectangular case with rounded corners. The icon grid. The touch gestures. A design patent cannot be countered with “we have a different implementation.” Either the product in question looks like the protected design, or it looks different. This made it easier for Apple to win the jury’s decision than it would have been with technical patents.

Jobs’ Basic Approach

Nancy Heinen, who served as General Counsel at Apple until 2006, quoted Jobs as saying, “If anyone at Apple can come up with an idea, we should file a patent, because even if we never build it, it’s a defensive tool.” In the years leading up to the iPhone launch, Apple filed thousands of patents, many of them defensive. The IP department was closely integrated into product development.

The Expanded Goal

According to Walter Isaacson’s biography, Jobs said: “I’ll spend my last breath setting this right, and I’ll spend every penny of Apple’s $40 billion in the bank to destroy Android, because it’s a stolen product.” The lawsuit against Samsung was just one part of a broader campaign against the Android ecosystem—HTC, Motorola, and Google itself were also in the crosshairs.

The sober assessment

Financially, the dispute was insignificant for Apple, given its $267 billion in cash reserves. Strategically, it was more important. The lawsuits made development more expensive for Android manufacturers, forced them to make design changes, and created a climate in which direct copying became legally risky. That is the real added value of an aggressive enforcement strategy. In subsequent product generations, Samsung significantly altered both the case design and the icon layout—an additional defensive effort that gave Apple a competitive advantage in attracting new customers.

What can a company learn from this?

Design patents are undervalued by manufacturers of aesthetically distinctive products. They are less expensive than technical patents, can be obtained more quickly, and are, in many cases, harder to circumvent. Companies in the mechanical engineering, consumer goods, or medical device sectors that expand their portfolios to include design rights are building a second line of defense. The Apple-Samsung case also demonstrates that a patent strategy is not just about defense, but also about actively shaping the competitive landscape. Companies that consistently file lawsuits teach the market not to copy their products.

Sources: NBC News · Cult of Mac · Quandary Peak Research · Inventors Foundation · Communications of the ACM

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Case 11 – King Gillette: Patents as the Foundation of an Entire Business Model (Business Model · Consumer Goods)

The situation at the time: Around 1900, men either had their beards shaved at the barber’s or used straight razors, which had to be sharpened regularly. The safety razors of the time were reusable and expensive. Starting in 1895, King Gillette developed a razor blade that was so inexpensive to produce that it could be thrown away.

The result: In the second year after its market launch, Gillette sold 90,884 razors and 123,648 blades. By 1915, blade sales had exceeded 70 million units. Gillette maintained a virtual monopoly on the market for over two decades, until the patents expired in 1921.

The Patent as the Foundation of a Business Model

In 1904, Gillette was granted two patents: one for the razor, one for the blade, and one for the combination of the two. In the patent application, he had already articulated the business logic: “I can produce and sell my blades so cheaply that users can buy them in bulk and throw them away when they become dull, without the cost becoming as high as that of sharpening the blades used previously.”

What came of this is now known as the “razor-and-blade model”: The razor (the base unit) is sold at a low price or even below production cost, and the money is made on the consumables. Printer manufacturers, console manufacturers, coffee capsule providers—they all follow the same principle. The basis for this is a patent that prevents imitators from producing blades, ink, or capsules.

What Happened When the Patents Expired

When the patents expired in 1921, the market was flooded with identical blades from competitors within a year. Gillette’s sales fell by 20 percent. Gillette responded with a two-pronged strategy: On the one hand, he introduced an improved, newly patented blade to the market. On the other hand, it drastically lowered the price of the basic razor to keep users loyal to the Gillette system before they switched to the competition.

The Long-Term Strategy

Gillette maintained its dominance for over a century through consistent innovation and patenting. In 1971, the company introduced the Trac II, the first dual-blade razor, and in 2006, the Fusion, featuring five blades. Every innovation was patented, and each patent family extended the company’s market dominance for another generation. Gillette also acquired small competitors, thereby gaining access to their patents.

What can a company learn from this?

A patent protects an invention, but a patent strategy protects a business model. Anyone who builds their business on recurring consumables, replacement parts, or supplies should align their patent strategy accordingly—protecting not only the device itself, but also the consumable parts, the integration between the two, and the next generation of developments.

Sources: Harvard Business Review · Smithsonian National Museum of American History · Lemelson-MIT · The Strategy Story · Wikipedia

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Case 12 – John Chen at BlackBerry: From Smartphone Manufacturer to Licensor (Transformation · Mobile Communications)

The situation: When John Chen became CEO in November 2013, BlackBerry was on the verge of obscurity. The smartphone business was collapsing, and Android and iOS dominated the market. But BlackBerry had one asset that had long been underestimated: over 44,000 patents.

The result: In 2023, BlackBerry sold the majority of its legacy smartphone patents for $170 million upfront, with total proceeds of up to $900 million. In the previous quarter, the licensing business had already accounted for 30 percent of total revenue.

The Repositioning

Chen made a fundamental decision: BlackBerry gradually phased out its smartphone hardware business and focused on two areas—cybersecurity (with the acquisition of Cylance) and automotive software (with the QNX operating system, which now runs in over 195 million vehicles). The old smartphone patents remained as a third source of revenue.

Active enforcement

Chen took an aggressive approach. BlackBerry sued Google, Facebook, Snap, and Nokia for alleged patent infringements. Critics called the strategy “patent trolling”; internally, it was seen as a rational way to monetize dormant assets. The licensing business nearly doubled within a single quarter, reaching $63 million.

The first attempt to sell it failed

In January 2022, BlackBerry announced the sale of its patents to Catapult IP Innovations for $600 million. The deal fell through because the buyer was unable to secure financing. This is an important point: The patent market is illiquid. Even if the portfolio is nominally worth $600 million, you need a buyer with financing. BlackBerry had to follow up with another structured deal in 2023.

A Sober Look at the Numbers

Samuel Baird, an IP analyst from Las Vegas, estimated the true cost to the buyer—including maintenance and litigation costs—at over $900 million. He noted that the return on investment is uncertain given a “portfolio with rapidly expiring patents.” This shows that the value of a patent portfolio depends heavily on the remaining term of the patents and the active licensing business.

What can a company learn from this?

Any company that withdraws from a business segment should not simply let the patents it has developed there lapse. They can be sold, licensed, or used as a defensive arsenal against competitors in related fields. A company that divests a business unit often unwittingly gives away IP assets that, if sold separately, would be worth more than the business unit itself.

Sources: SiliconANGLE · The Globe and Mail · IAM Media · The Motley Fool

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Case 13 – Pekka Lundmark at Nokia: How a Failing Smartphone Manufacturer Became a Licensing Giant (Transformation · Telecommunications)

The starting point: Nokia had completely missed the shift to Android and iOS in the smartphone market. In 2013, the company sold its mobile phone division to Microsoft. What remained was the infrastructure business and a massive patent portfolio from the time when Nokia dominated the mobile phone market.

The result: In early 2024, Nokia reported an annualized run rate of 1.3 billion euros in licensing revenue. The goal: 1.4 to 1.5 billion euros in the medium term. By 2030, over 800 million euros in annual contractually guaranteed revenue has been committed.

Licensing Pricing Policy

Nokia’s strategy focused on market penetration, not on maximum prices. While Qualcomm can charge up to $16.25 per 5G smartphone and Ericsson up to $5, Nokia capped its royalty rate at $3.50 per 5G device. The reasoning: It’s better to have all the major manufacturers as licensees than to haggle over the maximum rate with just a few.

The 2021–2024 Renewal Cycle

Between 2021 and early 2024, Nokia renewed its smartphone licensing agreements with all major manufacturers: Apple, Samsung, Huawei, Honor, Oppo, Vivo, and Transsion. Jenni Lukander, President of Nokia Technologies, called this comprehensive coverage remarkable: “Virtually the entire global smartphone market is licensed for our mobile technologies—something that, to my knowledge, no other patent licensor has achieved at this time.”

Expansion into New Fields

The smartphone market is saturated for Nokia. Growth is coming from the automotive industry, IoT, multimedia, and consumer electronics. Nokia has signed licensing agreements with Daimler/Mercedes, Lenovo, and seven major automakers. The automotive market was particularly competitive: Manufacturers argued that their suppliers should license the patents. Nokia succeeded in ensuring that the automakers themselves pay.

The Renaming as a Signal

In 2025, Nokia renamed its IP division from “Nokia Technologies” to “Technology Standards.” CEO Justin Hotard explained that the new name reflects Nokia’s leading role in standardization. It’s a subtle but important positioning: Nokia doesn’t sell patents; Nokia sells access to the standards that underpin the industry.

What can a company learn from this?

A company that loses its hardware position in a market can still monetize its established IP portfolio for a long time to come. The prerequisite is that the patents are standard-essential or at least so fundamental that competitors need them. Those who patent only niche technologies lose their IP foundation along with the hardware. Those who participate in standardization bodies and contribute their technology there are building a second phase of life for their portfolio.

Sources: Nokia press release, February 2024 · Sisvel · IP Fray · Market Realist · Nokiamob

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Case 14 – Pfizer and the Lipitor Patent Cliff: How to Manage a $10 Billion Loss (Lifecycle Management · Pharmaceuticals)

The background: Lipitor (atorvastatin) was the best-selling prescription drug in history, with peak sales of $12.9 billion. Its U.S. patent expired on November 30, 2011. Between 2010 and 2012, drugs that together accounted for 42 percent of Pfizer’s pharmaceutical sales lost their patent protection.

The result: Despite the generic drug onslaught, Pfizer managed to cushion the transition financially. Among industry experts, the turnaround strategy became a textbook example of patent cliff management. Global Lipitor sales plummeted by 71 percent between Q3 2011 and Q3 2012, but the overall margin remained more stable than analysts had expected.

The Three-Pronged Defense

Pfizer’s response was not to fight the inevitable, but to manage the transition. The strategy had three components.

First, the authorized generic. Pfizer licensed the Lipitor formula to a generic partner, which launched the drug on the day the patent expired—though Pfizer retained a share of the revenue. In doing so, Pfizer countered the 180-day exclusivity of the “first-to-file” generic manufacturer. Instead of a single generic manufacturer reaping monopoly profits for six months, two suppliers shared the market from day one. Pfizer retained a portion of the generic drug margin.

Second, direct discount and pricing policies. Pfizer offered health insurance companies direct discounts that pushed Lipitor prescriptions into the generic drug reimbursement category. In some cases, the brand-name drug was cheaper for patients than the generic version.

Third, marketing for the brand. Pfizer invested in direct-to-consumer advertising to maintain brand loyalty. The idea is that even when generic drugs are available, patients and doctors will stick with the brand they’re used to if it’s comparably priced.

The Limits of the Strategy

The measures slowed the decline in revenue but could not prevent it. Lipitor’s quarterly revenue fell from $2.6 billion to $749 million within a year—a 71 percent drop. Pfizer recognized early on that the long-term solution had to lie beyond patent defense: in its research pipeline and in acquisitions. In 2009, Pfizer acquired Wyeth Pharmaceuticals for $68 billion to replenish its pipeline.

Today’s Recap

By 2028, Pfizer will lose exclusivity on Eliquis, Ibrance, Xtandi, and Prevnar 13—products with annual sales in the range of $17 billion to $18 billion. The response is structurally the same: cost reductions of $3.5 billion in 2024 plus an additional $1.7 billion by 2027, the acquisition of Seagen for $43 billion in 2023, and an increased focus on the oncology pipeline.

What can a company learn from this?

Patent protection eventually expires. Anyone who builds their business model around a single protected product must plan for the transition starting in Year One, not Year Fifteen. This applies not only to the pharmaceutical industry. Specialty chemicals, medical technology, and many areas of mechanical engineering also have product life cycles that stand or fall with patent protection. Planning for the next generation must proceed in parallel with the current product.

Sources: Drug Patent Watch · PMC NCBI · Parola Analytics · Alcimed · U.S. Pharmacist

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Case 15 – Philips and Signify: The EnabLED Licensing Program with Over 700 Licensees (Licensing Program · Lighting)

The background: Philips had invested heavily in LED technology for decades and built up a correspondingly broad patent portfolio. The LED market was growing rapidly, and Asian suppliers were flooding into the market—many without regard for patent rights.

The result: The EnabLED program, launched in 2008, now has over 700 licensees, including Chauvet, Colorbeam, iGuzzini, and Amerlux. The program transformed patents from a cost center into a scalable source of revenue.

The Structure of the Program

Frank Bistervels, Vice President of Intellectual Property Licensing at Philips Lighting, established EnabLED as a standardized licensing offering. Instead of negotiating individually with each manufacturer, Philips offered a pre-drafted license agreement with defined royalty rates. This drastically reduced transaction costs and made it attractive for smaller manufacturers to obtain a license rather than risk a lawsuit.

The licensed patents cover key areas: warm dimming, high color rendering white, tunable white, color illumination, and efficient light mixing and distribution. These are the technologies that make modern LED products possible in the first place.

The Lever: Lawsuit or License

Philips combined the licensing program with active enforcement. Companies that did not obtain a license but still sold LED products incorporating patent-infringing technologies were sued. The lawsuits were public, and the judgments were published. For the majority of manufacturers, obtaining a license was the more rational option.

The Realignment Under Signify

In 2018, Philips Lighting was renamed Signify. The company developed new business models—Lighting as a Service, Connected Lighting—and actively patented them. Signify began licensing not only the technology but entire business models. This was a paradigm shift that had been relatively uncommon in the industry until then.

What can a company learn from this?

A standardized licensing program can relieve a company of the burden of negotiating individually with each prospective licensee. Prerequisite: The portfolio must be broad enough that potential licensees have a genuine reason to opt for the standard license. This works particularly well in technology fields with many small and medium-sized manufacturers—such as in mechanical engineering accessories, sensor technology, or niche chemicals.

Sources: Signify Company Website · LED Inside · IEEE Xplore Study · IP Business Academy

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Case 16 – Xerox PARC: The Most Instructive Defeat in the History of Intellectual Property (Counterexample · Computers)

The background: Xerox’s Palo Alto Research Center (PARC), founded in 1970, was the place where the graphical user interface, the computer mouse, Ethernet, the laser printer, and object-oriented programming were developed. Xerox had the foundations of the modern computer world tucked away in a drawer.

The result: Steve Jobs visited PARC in 1979 and licensed the insights in exchange for Xerox shares in Apple. Apple incorporated what it saw into the Lisa and Macintosh. Microsoft followed suit with Windows. Xerox failed to adequately protect and commercialize the innovations. When Xerox sued Apple in 1989, Jobs commented that Xerox was so dysfunctional that it “couldn’t even file a lawsuit on time.” The court dismissed the lawsuit.

What exactly went wrong

PARC was 3,000 miles away from Xerox headquarters. The developers were producing world-class innovations, while corporate management was focused on the copier business. The sales team earned their commissions from laser printer lease agreements worth half a million dollars each. There was no comparable incentive structure for a “decentralized” computer system.

A legal disaster: Xerox did not patent many of its fundamental inventions until after the fact. Some core elements of the GUI were never patented at all. Other patents were filed too late to take timely action against Apple or Microsoft. By the time Xerox finally filed a lawsuit, some of the statutes of limitations had already expired, and the courts ruled that Xerox had waited too long.

The Commercialization Gap

In 1981, Xerox launched the Xerox Star, the first commercial PC with a GUI. The device was technically advanced, but prohibitively expensive, poorly positioned, and aimed at a target audience that didn’t exist. The Star was the first indication that an invention and a marketable product are two different things. Xerox shut down its PARC-related computer division shortly thereafter. The rest is Apple and Microsoft history.

The learning effect for the entire industry

The Xerox case is the main reason why every major technology company today maintains a professional IP department that works in parallel with product development. The lesson: Anyone who has an innovation but neither patents nor commercializes it is effectively giving it away to the competition. This doesn’t happen maliciously. It happens because incentive structures, organizational structures, and strategic focus are not directed toward the innovation.

What can a company learn from this?

The most common problem in companies is not that they don’t make inventions, but that inventions get lost in the day-to-day R&D routine because filing a patent application is seen as extra work. A structured invention reporting process with clear incentives for employees changes that. The Employee Invention Act serves as the legal backbone for this—yet, surprisingly often, it is not consistently implemented.

Sources: Engsales Substack · Medium (David Baek ) · Four Week MBA · Wikipedia (Apple v. Microsoft ) · Strategy From History

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Case 17 – Nortel in Bankruptcy: $4.5 Billion for a Defunct Company (Liquidation · Telecommunications)

The background: Nortel Networks was once one of the world’s leading telecommunications equipment suppliers, competing with Cisco and Avaya. After a decade-long decline and the 2007 credit crisis, Nortel filed for bankruptcy in 2009. The company itself could no longer be saved. What remained were 6,000 patents and patent applications.

The result: In 2011, the bankruptcy estate sold the patents to the Rockstar consortium for $4.5 billion—five times more than Google’s opening bid. George Riedel, Nortel’s Chief Strategy Officer, called the amount and the dollar volume “unprecedented.” The price per patent was approximately $750,000.

Why the patents were worth so much

The portfolio included intellectual property rights related to 4G/LTE, wireless, data networks, optics, voice, the Internet, semiconductors, and service provider infrastructure. An analysis showed: Of 105 LTE patent families classified as essential, Nokia controlled 57, Ericsson 14, and Nortel, Qualcomm, and Sony each controlled about seven. Nortel thus held a strategically significant share of the 4G standard—just as the smartphone market was exploding.

Calculating the ROI of Bankruptcy

Nortel had invested an estimated average of $30,000 per patent (filing, examination, maintenance). The sale price of $750,000 per patent represents a return of about 25 times the initial investment. This shows that even if a company fails, its patent portfolio can still hold significant value—provided the portfolio is strategically broad and embedded in relevant standards.

The Bitter Symmetry

Nortel’s shareholders and former employees saw little of the $4.5 billion. The money went into the bankruptcy estate, was divided among creditors in the U.S., Canada, and the U.K., and was eroded by years of litigation. The portfolio was valuable, but the bankruptcy proceedings were a tragedy.

What can a company learn from this?

A patent portfolio is an asset that should be valued independently of the company’s day-to-day operations. An annual patent valuation conducted by an external specialist reveals which intellectual property rights have strategic value and which should be sold or abandoned. In the event of a crisis—and also in succession planning—this valuation is worth its weight in gold. A family-owned business whose patents are not valued separately at the time of sale regularly forfeits a significant portion of the purchase price.

Sources: Channel Futures · MacRumors · Mises Institute · What’s Your Tech · FOSS Patents

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Case 18 – Kodak as the Loser: The Other Side of the Polaroid Coin (Counterexample · Photography)

The background: Kodak was the dominant player in the photography industry in the 1970s. When the company entered the instant photography market in 1976, it was aware that Polaroid controlled the field. However, the engineers believed they had found a way to circumvent Polaroid’s patents. Management relied on internal legal assessments and underestimated Edwin Land’s determination to enforce his patents.

The result: $925 million in damages, withdrawal from the market, a buyback of cameras already sold because customers could no longer obtain film, and massive damage to the company’s reputation. At the time, the $925 million award was the largest patent infringement judgment in U.S. history.

What Went Wrong Strategically

For years, Kodak had supplied Polaroid with film negatives and chemical reagents. The engineers at Kodak had firsthand knowledge of Polaroid’s technology. Land argued in court that Kodak had used this inside knowledge to develop a competing system—and the court largely agreed with this argument.

The strategic misstep occurred on several levels. First, Kodak had analyzed the patent landscape but apparently interpreted the analysis too optimistically. Second, Kodak had underestimated Land’s tenacity; he viewed the market entry as a personal betrayal. Third, Kodak was economically dominant and assumed that the court would weigh the case in favor of consumer welfare. It did not.

The Freedom-to-Operate Analysis as a Missing Pillar

A thorough freedom-to-operate analysis prior to market entry would have warned Kodak. Presumably, Kodak did conduct such an analysis, but it was not taken seriously enough or was interpreted too optimistically. The cost of a thorough external FTO analysis ranges from five to six figures—a fraction of the $925 million that Kodak later had to pay.

Damage to Reputation

Financially, the ruling was painful for Kodak, but it did not threaten the company’s survival. The damage to its reputation had a more lasting impact. Kodak was suddenly seen as a company that copied others’ technology. The cease-and-desist order, the massive buyback campaign involving millions of desperate customers left without a supply of film—these events stuck in the public consciousness. Kodak never truly recovered from this; its 2012 bankruptcy had other causes, but the Polaroid case was an early indicator of a corporate culture that preferred to buy or imitate innovation rather than develop it in-house.

What can a company learn from this?

An FTO analysis prior to market entry is not an optional step. It is a fundamental prerequisite for any product development that ventures into adjacent industries or fields with strong existing patents. Anyone who skips this analysis or conducts it only superficially risks not only having to pay damages but also losing market approval and damaging their reputation. In my practice, I have seen on multiple occasions that companies had to recall products that were already in production—because someone in management cut corners where they shouldn’t have.

Sources: Toronto Metropolitan University Archives · Polaroidland · R K Dewan · Fstoppers · Steve Blank

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Case 19 – Berthold Leibinger at Trumpf: From a Swabian Engineer to a Global Leader in the Laser Industry (Rise · Mechanical Engineering)

The background: In 1961, Berthold Leibinger joined Trumpf as head of design. Revenue stood at 11 million DM, and the company had 325 employees. The company manufactured mechanical sheet metal working machines for the regional market.

The result: Under Leibinger’s leadership, Trumpf grew to become the global market leader in machine tools and industrial lasers. Revenue most recently reached 5.4 billion euros, and the company now employs 13,500 people. Today, Trumpf is a technology supplier to the semiconductor industry; without Trumpf’s EUV lasers, the latest generation of chips would not exist.

The Landmark Decision

Leibinger recognized early on that lasers would be the future of sheet metal processing. In 1978, during a stay in the U.S., he personally investigated whether a CO2 laser was suitable for sheet metal cutting. A year later, Trumpf introduced the first combined punch-laser machine, initially equipped with American laser sources. In 1985, Trumpf launched the TLF 1000, the first CO₂ laser it had developed in-house. Four years later, Trumpf introduced its first “folded” laser, which remains the world’s best-selling multi-kilowatt laser to this day.

Patent Strategy as Payment

Particularly noteworthy: Leibinger’s patents became part of the company’s internal strategy. As a design engineer, he filed numerous inventions, including—as early as 1957—a patent for a coordinate guidance system that stemmed from his thesis. Christian Trumpf, the childless owner, compensated Leibinger for these patents with company shares. In this way, Leibinger grew into the role of a partner without having to invest his own start-up capital.

This is a key point that is often overlooked: In this case, patents were not merely a technical means of protection, but the currency that enabled a brilliant engineer to become an entrepreneur. Without the Employee Invention Act and the associated compensation provisions, this path would not have been possible.

The Consistent R&D Ratio

To this day, Trumpf spends about 11 percent of its revenue on research and development. Peter Leibinger, the founder’s son and former CTO, put it this way in the *Handelsblatt*: “Laser technology is a business discovery machine.” The 3D metal printing division evolved from sheet metal cutting; EUV lithography—for which ASML and Zeiss jointly won the German Future Prize—emerged from materials processing.

What can a company learn from this?

The Employee Invention Act is more than just a legal obligation. It is a tool that companies can use to retain their best talent. Companies that establish fair and transparent rules for compensating inventors create a twofold incentive: for developing new inventions and for the willingness to commercialize them together with the company. Trumpf’s rise is also the story of a succession plan involving patents.

Sources: NZZ · Trumpf Company History · Wikipedia: Trumpf · Handelsblatt: Interview with Peter Leibinger · Laser Focus World

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Case 20 – Andreas Stihl: 2,800 Patents as the Foundation of Global Market Leadership in Chainsaws (Innovation · Forestry)

The background: In the mid-1920s, mechanical engineer Andreas Stihl observed that work in the forestry sector was done almost exclusively with axes and muscle power. In 1926, he founded the A. Stihl Engineering Office in Stuttgart, initially specializing in steam boilers and washing machines.

The result: Since 1971, Stihl has been the world’s best-selling chainsaw brand. Today, the company employs 18,200 people, generates 4.58 billion euros in revenue, and holds approximately 2,800 patents and patent applications. Stihl files about 100 new patents each year.

The Foundation: Two Core Patents

Stihl’s history of patents begins with two patents that made the entire business possible. In 1929, he was granted Swiss Patent No. 133857 for his electric hand-held chainsaw. This was followed in 1931 by German Reich Patent No. 571469 for the gasoline-powered chainsaw. Both patents protected not only specific technical details but also the core concept of the portable motorized chainsaw. This enabled Stihl to market the technology exclusively for years to come.

Continuous improvement

In 1932, Stihl patented the 3-link saw chain with cutting and raker teeth. In 1954, he introduced the BLK, a lightweight chainsaw weighing just twelve kilograms that, for the first time, could be operated by a single worker. Each product generation was protected by new patents. Stihl’s heirs continued this tradition: The first exhaust catalytic converter for two-stroke engines in chainsaws was developed by Stihl and reduces emissions by up to 80 percent.

The cadence that remains in effect to this day

100 patent applications per year is a remarkable figure for a family-owned company with 4.58 billion euros in revenue. By way of comparison: that amounts to roughly one patent per 45 million euros in revenue. This ratio positions Stihl among Germany’s most innovative companies. Anke Kleinschmidt, a member of the Executive Board responsible for research and development, is continuing this tradition.

What can a company learn from this?

A steady stream of patents is more important than individual, spectacular patent applications. Companies that convert a defined percentage of their R&D results into patent applications each year build a portfolio that scales over time. The first patents protect the core product. Subsequent patents protect further developments and secure the market position even after the basic patents have expired.

Sources: Sheconomy Hidden Champions · Stihl Product History · German Biography of Andreas Stihl · Wikipedia: Andreas Stihl · Stihl History: 1930s

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Case 21 – Fritz Sennheiser: From Testing Lab to Supplier to the World’s Stages (Niche Dominance · Audio)

The background: In 1945, just a few weeks after the end of the war, Fritz Sennheiser founded the Wennebostel Laboratory with seven fellow engineers from the University of Hannover. Their first product was a voltmeter. The real breakthrough came in 1946, when Siemens asked whether “Labor W” could build microphones.

The result: Sennheiser became the global market leader in wireless microphone systems for stage and broadcast. The MD 21 (1953), MD 421 (1960), and MD 441 (1971) models remain standard microphones in broadcasting to this day. In 1996, Sennheiser received an Emmy Award for the development of wireless microphones, and in 1998 and 1999, it was awarded the German Business Innovation Prize.

Strategic Niche Selection

Sennheiser never competed with mass-market manufacturers of consumer electronics. Instead, the company focused on professional applications: studio microphones, broadcast equipment, pilot headsets, and conference systems. In these niche markets, it wasn’t price that mattered, but technical performance. And that is precisely where the company was able to establish a unique position through patents.

Patent Milestones

In 1988, at the request of Lufthansa, Sennheiser developed the NoiseGuard headset for pilots. This technology was later incorporated into hearing aids. In 1993, Sennheiser launched the IS 850, the world’s first digital infrared headphones. This was followed in 1999 by the Optical Microphone and in 2000 by AudioBeam technology for focusing sound waves. Each of these innovations was patented and marketed as a unique selling point.

The 2021 Strategic Restructuring

It is noteworthy how Sennheiser handled its consumer business. In 2021, the family-owned company sold its consumer division to the Swiss firm Sonova Holding. Sonova received a perpetual brand license for Sennheiser. The family-owned company shifted its focus to the more profitable areas of broadcast, studio, and professional audio. In 2022, Sennheiser acquired the Swiss audio specialist Merging Technologies—a clear sign that the focus was to be on patents and expertise in the professional segment.

What can a company learn from this?

A strong patent portfolio in a defined niche outperforms a broadly diversified portfolio across many markets. Over the past seventy years, Sennheiser has proven that a specialized provider can hold its own against corporations like Sony or Bose if it maintains a technological lead in its chosen niche. The 2021 decision to divest the consumer division also demonstrates that a portfolio becomes more valuable when it remains focused.

Sources: Sennheiser History · Wikipedia: Sennheiser · Lite Magazine · Radio Museum: Company History

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Case 22 – Uğur Şahin and Özlem Türeci at BioNTech: How Moderna Lost Its Patent Before the EPO (Enforcement · Biotechnology)

The background: In August 2022, Moderna sued Pfizer and BioNTech in the U.S. and Germany for alleged infringement of its mRNA patents in connection with the Comirnaty COVID-19 vaccine. Moderna CEO Stéphane Bancel publicly stated that the company had spent years developing the technology and had patented it before the pandemic. BioNTech suddenly found itself facing a lawsuit seeking billions in damages.

The result: In November 2023, the European Patent Office declared Moderna’s key patent, EP 3 718 565 B1, invalid. BioNTech commented that the decision was “important, as we believe that this and other Moderna patents do not meet the requirements for grant and should never have been granted.”

The Background of the Technology

The foundation for modern mRNA vaccines was not laid by Moderna or BioNTech, but by Katalin Karikó and Drew Weissman. The two researchers discovered that the inflammatory response to mRNA is almost completely eliminated when base modifications are incorporated. This groundbreaking work was published in 2005 and was awarded the Nobel Prize in Physiology or Medicine in 2023. Both Comirnaty and Spikevax are based on this discovery.

The Defense Strategy

BioNTech and Pfizer went on the offensive instead of negotiating. They challenged the validity of Moderna’s patents before the European Patent Office and in national proceedings. Their argument: Moderna’s patents claimed subject matter that was already part of the prior art—Karikó and Weissman had publicly described the modified mRNA technology as early as 2005. The EPO accepted this argument and revoked patent EP 3 718 565 B1.

The Counterattack

At the same time, BioNTech filed a lawsuit against Moderna. The industry is now centered on mRNA vaccines worth billions, with potential licensing claims in various directions. In 2025, Bayer also filed a lawsuit against Pfizer, BioNTech, and Moderna. This shows that in a mature market with multiple players and overlapping patent landscapes, the battle over intellectual property rights becomes the real battleground.

Lessons for Risk Mitigation

BioNTech’s response to the lawsuit is a textbook example of an active defense. The alternative would have been a settlement involving royalty payments. Instead, Biontech launched a direct challenge to the validity of the plaintiffs’ patents. The result: Moderna’s most important patent in Europe has been invalidated, and the negotiating position has shifted fundamentally.

What can a company learn from this?

Anyone sued for patent infringement has two options: negotiate or fight back. The right choice depends on whether the patents at issue are substantively sound. A thorough counter-investigation by experienced patent attorneys can reveal that the opposing party’s case is itself built on shaky ground. In such cases, a direct challenge to the patents is the superior strategy. Prior knowledge of the prior art serves as the foundation for this approach.

Sources: Maucher Jenkins · Transcript · NY1 Moderna Lawsuit · Market Screener EPA Decision

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Case 23 – Robert Bosch: 6,700 Patents Per Year as a Core Strategy for Technological Leadership (Technological Leadership · Automotive Suppliers)

The background: Bosch began in 1886 as a “Workshop for Precision Mechanics and Electrical Engineering” in Stuttgart. After the world wars, the company lost a large portion of its patents, which were confiscated in the United States and England. The share of international sales fell from over 50 percent before the war to less than 20 percent.

The result: Bosch is now one of Europe’s largest patent filers. In 2025, the company filed approximately 6,300 patents and once again topped the German rankings. The group generated 91 billion euros in revenue. Clarivate ranks Bosch among the 100 most innovative companies worldwide.

The Foundation: Magnetic Ignition, 1897

The “Bosch magneto ignition” of 1897 was the company’s first true high-tech patented product. In 1901, Gottlob Honold, working on behalf of Robert Bosch, designed the high-voltage magneto ignition system, which made the automobile suitable for everyday use. The small backyard workshop grew into an international supplier. The pattern repeated itself: a key invention, protected by a patent, opened up a new market.

The Common Rail Strategy

In 1997, Bosch brought common-rail diesel injection to production-ready status. What made this unique was that Bosch developed the technology for mass production based on acquired patents. The company recognized the potential, acquired the relevant intellectual property rights, and used them as a foundation to develop its own patented product line. The strategy: Not every invention has to come from the company’s own R&D. By acquiring the right patents and refining them with its own expertise, a company can dominate an entire market. In 2000, gasoline direct injection followed the same principle.

Current Figures

Between 2000 and 2018, Bosch filed 1,539 patents in battery technology alone, making it one of the top 5 companies worldwide in this field. In the field of AI patents, Bosch ranked among the top 20 in early 2019. In 2014, the company filed over 4,000 patent applications; in 2018, over 4,200; and in 2025, around 6,300. The annual R&D ratio ranges between 8 and 10 percent of revenue.

Patents and Licenses as a Business Strategy

In its annual report, Bosch openly describes the role of patents: “Patents enable Bosch to secure its technological leadership and to allow third parties to benefit from its technological edge through licensing.” The phrase “to allow third parties to benefit from its technological lead through licensing” is not just a PR statement, but rather an expression of an active licensing policy.

What can a company learn from this?

Technological leadership is not a trait, but rather the result of decades of continuous patent work. Bosch also demonstrates that acquiring patents can be part of the strategy. Those who limit their R&D to their own inventions miss the opportunity to acquire strategically important intellectual property rights from bankruptcies or spin-offs. The market for patent acquisitions is surprisingly affordable for buyers with a clear strategy.

Sources: Bosch Press Release: Strategy 2030 · Elektronikpraxis: Bosch History · Bosch Patents and Licenses · Wikipedia: Robert Bosch GmbH · Bosch Mobility Milestones

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Case 24 – Martin Herrenknecht: How to Keep Elon Musk in Check in Tunnel Construction (Global Market Leadership · Tunnel Construction)

The starting point: In 1977, Martin Herrenknecht founded a small engineering firm specializing in tunnel boring machines in Schwanau-Allmannsweier. The market was considered highly specialized and not very attractive. Major machinery manufacturers such as Mitsubishi and other Japanese companies dominated individual segments.

The result: According to its own figures, Herrenknecht currently accounts for approximately 1.1 billion euros of the 1.5 billion euro global market—a market share of about 73 percent. The company builds the world’s largest tunnel boring machines, with a diameter of 17.63 meters, and has delivered over 240 machines for the Chinese subway system alone.

The Niche Strategy

Herrenknecht focused on a seemingly limited market segment: mechanical tunneling. In this niche, the company became the technology leader. Today, the product range extends from micromachines with a diameter of 10 centimeters for sewer systems to 19-meter machines for large-scale projects such as the Gotthard Base Tunnel or the expansion of the Elbe Tunnel (TRUDE).

The Pipe Express Innovation Initiative

In 2013, Herrenknecht unveiled the Pipe Express system at Bauma, an innovative method for underground pipeline installation. With Pipe Express, pipelines over 1,000 meters long and with diameters ranging from 800 to 1,500 millimeters can be laid using a semi-open construction method at a speed of up to 1.20 meters per minute. The method was funded by the Federal Ministry for the Environment and awarded the Bauma Innovation Prize. The strategic point: Through patented methods, Herrenknecht is expanding its own market segment rather than merely defending existing niches.

The Response to Elon Musk

In 2021, Elon Musk and his Boring Company caused a media stir in the tunnel-building industry. Musk’s promise: to build tunnels faster and more cheaply than established players. Martin Herrenknecht responded in *Manager Magazin* with a matter-of-fact statement: “In his showcase project in Las Vegas, Musk drilled 20 meters in one week. We can cover the same distance in a single day.” This statement shows that technological superiority—documented by patents and showcase projects—defends a brand far more effectively than mere marketing.

The 2024 Tunnel Expansion System

In 2024, Herrenknecht introduced the Tunnel Expansion System (TES). It enables the widening of existing tunnels while rail operations continue. The train travels through the center of the tunnel boring machine. In the DACH region alone, there are approximately 800 historic railway tunnels dating from 1850 to 1910 that would need to be widened to meet modern requirements. TES creates a new market that Herrenknecht can patent and occupy exclusively with this technology.

What can a company learn from this?

Niche dominance is not a result of size, but of continuous technical specialization. Herrenknecht demonstrates that a family-owned company can build a 73 percent global market share in a seemingly narrow market if it consistently focuses on patents, reference projects, and technological leadership. And it shows that even Elon Musk can be kept in check by facts—drilling speed, references, and patents.

Sources: Wikipedia (Herrenknecht ) · Business Insider (Herrenknecht vs. Musk ) · Tunnel Online interview · Herrenknecht press release (Bauma 2013)

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Case 25 – Viessmann: From Condensing Boilers to a 12-Billion-Euro Exit (Exit · Heating Technology)

The background: In 1917, Johann Viessmann founded a workshop for agricultural equipment in Hof an der Saale. In 1928, the company began manufacturing boilers. The boilers offered advantages in terms of fuel consumption and provided heat more quickly. Following improvements, the company systematically acquired intellectual property rights, utility models, and patents for its boiler technology.

The result: In April 2023, Viessmann sold its HVAC division—which accounted for about 85 percent of the group’s revenue—to the U.S. company Carrier Global for 12 billion euros. With this transaction, the Viessmann family has carried out one of the largest exits by a German family-owned company in recent years.

A Century of Development

Over the course of several generations, Viessmann has developed key technologies in heating engineering. By the late 1970s, the company had already introduced its first air-to-water and ground-source heat pumps—at a time when fossil fuels dominated the market. The patented Hydro-AutoControl hydraulic system reduces the time required for installing and commissioning heat pumps by up to 90 minutes. Viessmann ThermProtect is a patented absorber coating that protects solar collectors from overheating.

Setting the Course for Hydrogen

Viessmann’s positioning in the hydrogen sector was particularly strategic. The company was one of the first manufacturers worldwide to develop gas condensing boilers that can be powered 100 percent by renewable hydrogen. The associated patents became part of the portfolio that was sold to Carrier. Anyone who wants to be a player in the heating technology market of the future will find it nearly impossible to do so without Viessmann’s intellectual property rights.

Why the price was so high

12 billion euros for a heating technology company with 2.25 billion euros in revenue is a multiple that significantly exceeds the traditional valuation. The reason lies less in the company’s operating business than in its portfolio: Viessmann had a product range spanning 1 kilowatt to 120 megawatts, as well as patents on heat pumps, solar technology, fuel cells, micro-CHP systems, and biomass heating systems. Carrier did not buy the revenue; rather, it acquired the market position within the European energy transition.

The Strategic Wisdom of Selling

Max Viessmann, the fourth-generation CEO of the group, realized that the energy transition in Europe would require investments in the billions—an amount that a German family-owned company could no longer handle on its own. The sale secured substantial proceeds for the family and enabled the brand to scale up through a global partner. That is entrepreneurial clarity: When you recognize that your own resources are insufficient for the next phase, you sell at the highest possible price—and the patent portfolio is the lever that justifies that price.

What can a company learn from this?

A systematically structured patent portfolio is the factor that shifts the multiple in sale negotiations. Buyers pay for documented market positions. Anyone who fails to structure, value, and strategically position their intellectual property rights prior to a potential sale regularly forfeits hundreds of millions in value during the deal. A patent valuation should be a standard part of the preparation for any M&A transaction—and ideally should begin years before the idea of a sale even arises.

Sources: Wikipedia Viessmann · Viessmann Innovations · Handelsblatt Viessmann Dossier · HVAC

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Case 26 – Artur Fischer: The “Patent King” Who Held Almost as Many Patents as Edison (Patent Productivity · Fastening Technology)

The starting point: In 1948, Artur Fischer founded Fischerwerke in the Black Forest. Start-up capital: virtually zero. Product line: the synchronized flash for cameras that Fischer had previously developed. He filed his first patent application on May 24, 1949: an electrically triggered magnesium flash for cameras.

The result: By the time of his death in 2016, Artur Fischer had filed approximately 2,252 patents and utility models—a figure that ranks him among the most prolific inventors in human history, alongside Thomas Edison. In 2018, Fischerwerke generated approximately 864 million euros in revenue, produces over 15 million wall anchors daily, and supplies the construction industry worldwide.

Synchronized Flash as the Foundation

Agfa, then the market leader in cameras, had a problem with synchronizing the flash and the shutter. Fischer developed a solution, patented it, and within a few weeks became a supplier to the company. In total, he built 13 million flash units for Agfa. The synchronized flash not only brought Fischer worldwide recognition but also the financial independence that funded his later innovative work.

The Dowel as the Foundation of an Industry

In 1958, the Fischer anchor was introduced to the market—an unassuming gray plastic cylinder that revolutionized the construction industry. The patent situation was clear: Fischer had secured a patent for the expansion anchor in its basic form. Over the decades, this core patent gave rise to an entire product family: steel anchors, drilling equipment, and cement-bonded fasteners. Each variant was patented separately.

The Rhythm of Patents as a Life’s Work

In 2014, the European Patent Office awarded Fischer its Inventor’s Prize for his life’s work. The jury praised him for having “turned everyday problems into solutions” throughout his life. Until shortly before his death, Fischer worked daily at the Fischerwerke development center. His patents span fields that go far beyond fastening technology—including screws for healing broken bones and the “fischertechnik” engineering construction set, originally conceived as a Christmas gift for customers.

The Principle Behind Productivity

Fischer summed up his recipe for success matter-of-factly: “By recognizing a gap. The second prerequisite is to immerse yourself in a subject you’re unfamiliar with.” His inventions were always guided by people’s needs, not by technical gimmicks. “Every invention must serve people” was his guiding principle. This also explains the high conversion rate from invention to marketable product: Fischer never invented anything that didn’t have a practical use in everyday life.

What can a company learn from this?

Patent productivity is not a function of size or budget, but of mindset. Fischer held over a thousand patents as the sole owner of a family-owned business. The key was that every invention immediately led to a patent application, and every application resulted in a marketable product. Those who bridge the gap between laboratory results and patent applications can build an impressive portfolio even with a modest R&D budget.

Sources: Wirtschaftswoche · Spektrum der Wissenschaft · DPMA Artur Fischer · Wikipedia Artur Fischer · Federal Association of German Patent Attorneys

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Case 27 – Alfred Kärcher: How a Hot-Water High-Pressure Washer Became a Verb (Brand Building · Cleaning Technology)

The background: In 1935, Alfred Kärcher founded his engineering firm in Stuttgart-Bad Cannstatt with the goal of manufacturing his own product ideas in the field of heating technology. First successful product: the patented “Kärcher salt bath furnace” for tempering steel. In 1939, he moved the company’s headquarters to Winnenden.

The result: Kärcher now holds over 1,700 patents in the field of high-pressure cleaning and cleaning systems. The company is the global market leader. The brand name “Kärcher” has even made it into the Duden dictionary as a verb—“kärchern” is synonymous with high-pressure cleaning.

The two inventions that shaped the company

Alfred Kärcher’s first major success was the salt bath furnace. When the business model failed to scale and Kärcher needed capital, he sold the patent to Siebert GmbH in Hanau, a subsidiary of Degussa. With the proceeds, he purchased a factory building in Winnenden. This is the first important lesson: Patents can serve as a financing tool, not just as a form of intellectual property protection.

In 1950, Kärcher developed the first European hot-water high-pressure washer, the DS 350. The water-heating design remains the basis for all burners in the product line to this day. This was not just a single patent, but a platform technology upon which the entire subsequent product line was built.

The Concentration of 1974

Between 1950 and 1974, Kärcher had diversified into construction formwork, toys, and catamarans. In 1974, the family made a strategic decision: to focus on high-pressure cleaning. The company’s color changed from blue to the now world-famous yellow, and the entire marketing effort was geared toward the core product. From that point on, the patent portfolio in the core business area expanded dramatically.

The Rotor Nozzle: A Second Breakthrough

In 1995, Kärcher introduced its newly developed rotor nozzle—the “Dreckfräser”—which nearly doubled the cleaning power of high-pressure washers. Each generation of high-pressure washers was protected by new patents. In 1984, the HD 555 profi entered the consumer market. In 2007, the Tact filter cleaning system was introduced for wet/dry vacuums. In the professional sector, Kärcher pioneered the introduction of roller brush technology for floor scrubbers in 1986.

90 percent new products

Every year, Kärcher launches dozens of new cleaning devices on the market. Ninety percent of all products are five years old or younger. This pace of innovation would not be possible without systematic patent work. Every innovation is patented and thus protected for its planned market life.

What can a company learn from this?

The inclusion of the brand name “kärchern” in the Duden dictionary is the result of decades of consistent work on patents and trademarks. A brand that dominates a category becomes a generic term—and that status isn’t achieved through advertising alone, but through a patent-protected technical leadership role. A brand that stands for an entire product category is better protected against generic products and copies than any single patent.

Sources: Kärcher Innovation History · Alfred Kärcher Foundation · Wikipedia: Alfred Kärcher · Wikipedia: Kärcher Company

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Case 28 – Moderna Loses in Europe: The Downside of the mRNA Patent Offensive (Counterexample · Biotechnology)

The background: In August 2022, Moderna CEO Stéphane Bancel went public with a forceful message: The company had spent over a decade developing and patenting mRNA technology and needed to assert its rights against Pfizer and BioNTech. Moderna filed lawsuits simultaneously in the U.S., Germany, and the U.K. At the heart of the European lawsuit was patent EP 3 718 565 B1.

The result: In November 2023, the European Patent Office revoked patent EP 3 718 565 B1. Moderna thus lost its key enforcement tool in Europe. At the same time, other Moderna patents were challenged. The billion-dollar lawsuit originally announced lost much of its basis—at least in Europe.

The Strategic Mistake

Moderna’s mistake was not in deciding to file a lawsuit, but in overestimating its own strength. The company apparently had not sufficiently assessed how robust its own patents would be in the event of a challenge. The foundational work on modified mRNA nucleotides published by Katalin Karikó and Drew Weissman as early as 2005 constituted prior art that invalidated the core claims of Moderna’s patents. When BioNTech and Pfizer introduced these prior publications into the opposition proceedings, the patent was invalidated.

The Double Lesson

This case is instructive for two reasons. First, a granted patent is no guarantee of its validity. The opposition proceedings before the EPO and national invalidity proceedings are serious hurdles. Anyone who bases a lawsuit on a patent that is vulnerable to prior art is essentially handing the opponent the ammunition they need.

Second: Offense is often the best defense. BioNTech could have negotiated and paid royalties. Instead, the company launched a direct attack on Moderna’s patents. The result: Moderna lost its most important enforcement tool in Europe, while BioNTech saved billions in potential licensing fees.

The Scope of the Risk

The case also illustrates how widely dispersed the risk is in markets with a high concentration of patents. In addition to the Moderna-BioNTech dispute, Bayer sued Pfizer, BioNTech, and Moderna in 2025. Each of these lawsuits relies on different patents, all of which can in turn be challenged. In a mature market with overlapping technology claims, litigation becomes the norm. Legal departments become strategic units that prepare and implement management decisions.

What can a company learn from this?

Before a company files a patent lawsuit, experienced patent attorneys should thoroughly review the basis for the claim. This is especially true for the prior art. A lawsuit based on a vulnerable patent is an invitation to the opposing party to invalidate the patent. Conversely, a defendant who commissions a thorough prior art search often finds grounds that render the attack ineffective.

Sources: Maucher Jenkins on the EPA’s revocation · Market Screener EPA decision · NY1 Moderna lawsuit · Der Aktionär

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Case 29 – Larry Page and Google: $12.5 Billion for 17,000 Patents – and Why It Was Worth It (Defensive Acquisition · Mobile)

The background: Between 2010 and 2011, Google came under massive patent pressure. Oracle sued Google for billions over the use of Java in Android. Apple sued HTC and Samsung over their Android devices. Microsoft extracted licensing fees from virtually every Android manufacturer, claiming that Android infringed on Microsoft patents. IEEE Spectrum put it bluntly: “Google’s weak position in the patent game.” As a software company, Google was virtually defenseless against mobile communications patents—and, to make matters worse, lost the Nortel auction to the Rockstar consortium in July 2011.

The result: In August 2011, Google announced the acquisition of Motorola Mobility for $12.5 billion, which was completed in May 2012. Through the deal, Google acquired 17,000 granted patents and 7,500 pending patent applications. In January 2014, Google sold its handset business to Lenovo for $2.91 billion—and retained approximately 15,000 of Motorola’s patents. Android was legally defended, and cross-licensing negotiations with Apple (2014) and Microsoft (2015) resulted in settlements.

The Strategic Situation Before the Purchase

To understand Google’s decision, one must accurately trace the state of the mobile communications patent landscape in 2010–2011. Android was on its way to becoming the dominant mobile operating system—but Google itself, as a young software company, had hardly any patents in the areas that matter for smartphones: wireless transmission, antenna technology, power management, touchscreen interaction, and mobile communication standards. The relevant intellectual property rights were held by the established telecommunications companies. Two years earlier, Google had begun distributing Android to manufacturers for free without securing patent protection for it.

Competitors recognized this loophole and systematically exploited it. Apple sued HTC in March 2010 and Samsung in 2011. Oracle sued Google directly over Java patents and copyrighted Java APIs in Android. Microsoft entered into licensing agreements with nearly all Android manufacturers that provided for fees per Android device sold. Rumor has it that some manufacturers paid Microsoft more per device for the right to use Android than they paid Google—a grotesque situation that undermined the business model.

Why the Nortel Defeat Was the Deciding Factor

In July 2011, Google bid on the 6,000 mobile communications patents from Nortel’s bankruptcy estate (see Case 17). Google started with a bid of $900 million and submitted bids involving numbers like pi billion and other mathematical constants—a move that was dismissed internally as “engineer humor” but signaled to the outside world that Google didn’t know how to value a patent portfolio. The Rockstar consortium—comprising Apple, Microsoft, Ericsson, Sony, EMC, and RIM—outbid Google with an offer of $4.5 billion. Google was left without protection—and those intellectual property rights were now in the hands of the very companies that were already targeting Android.

The situation was therefore a matter of survival for Larry Page. Android was Google’s future. Without patent protection, Android would have become a perpetual licensee, whose manufacturers could be subjected to lawsuits at the whim of competitors. There was no longer an alternative to a major acquisition: building a patent portfolio in-house would have taken decades. Acquiring other portfolios was difficult anyway, given the Nortel precedent. That left only one realistic option: Motorola Mobility, which had been on the market after five quarters of losses.

The Deal in Detail

On August 15, 2011, Google announced the acquisition of Motorola Mobility. The price: $40 per share in cash, for a total of $12.5 billion—a 63 percent premium over the stock price prior to the announcement. Larry Page put it this way in his blog post: The acquisition would enable Google to “better protect Android from anti-competitive threats from Microsoft, Apple, and other companies.” The value of the patents in the deal was internally estimated at $5.5 billion.

Strategically, it was noteworthy that Google began aggressively using the patents even before the acquisition was finalized. In September 2011—nine months before the actual closing—Google transferred nine intellectual property rights to HTC that it had previously acquired individually: four from Motorola, two from Palm, and three from Openwave. HTC immediately used these patents to file a counterclaim against Apple. This was the first offensive use of the future portfolio even before the formal transfer of ownership. The message to Apple was clear: Android now has teeth.

The Economics Behind the High Price

At first glance, $12.5 billion seemed like an exorbitant price. In fact, the deal turned out to be significantly cheaper for Google than it appeared. At the time of the acquisition, Motorola Mobility had about $3.2 billion in cash. Google sold the set-top box business to Arris in 2013 for $2.35 billion. The handset business was sold to Lenovo in 2014 for $2.91 billion, with Lenovo acquiring 2,000 patents and Google retaining 15,000. Adding it all up, Google paid a net total of about $4 billion for the patents it retained and the Advanced Technology & Projects Research Lab. In his model calculation, Benedict Evans arrived at a net cost of about $7.15 billion; other analyses put the figure even lower. Even in the most conservative scenario, that amounts to approximately $265,000 per patent—compared to the roughly $750,000 per patent that Rockstar paid for the Nortel patents, that was a significantly better average.

Motorola’s Tactical Mistake and the Correction

Critics such as Florian Mueller of the FOSS-Patents blog called the acquisition “buyer’s desperation” at the time of the announcement and described Motorola’s patents as “too weak.” There was a grain of truth to this assessment: Even before Google’s acquisition, Motorola had filed lawsuits against Apple and Microsoft and achieved only limited success. The individual patents were often less effective than their sheer number might suggest.

Google drew the right conclusion from this criticism. Instead of continuing to aggressively pursue individual lawsuits using the Motorola patents, Google used them as a bargaining chip for cross-licensing. In 2014, Google and Apple reached a settlement that ended all pending litigation. In 2015, the same happened with Microsoft: Both companies discontinued all pending patent litigation and agreed to collaborate. This was not a defeat, as some commentators interpreted it. It was exactly the outcome Larry Page had sought with the Motorola acquisition: the truces brought an end to the Android patent wars.

Why the Strategy Worked Strategically—Three Levels

First, the deterrence level. The mere existence of a portfolio of 17,000 patents changed the opponents’ calculations. Anyone who wanted to attack Android had to expect to be hit with a counterclaim from Motorola’s arsenal. In most technology companies, the rule of thumb is this: if both sides have sufficiently large portfolios, the dispute ends in a cross-licensing agreement, not in a lawsuit. With the acquisition, Google finally had the scale to establish this balance.

Second, the protective shield for partners. Larry Page stated in 2014 during the Lenovo sale: “Motorola’s patents have helped create a level playing field, which is good news for all Android users and partners.” This isn’t just a PR platitude. Through Google licenses, Samsung, HTC, LG, and other Android manufacturers effectively became part of a shared patent defense system. In January 2014, Google signed a comprehensive ten-year cross-licensing agreement with Samsung. This was an indirect but extremely effective use of Motorola’s patent portfolio.

Third, the separation of the business and the portfolio. The sale of the handset business to Lenovo while retaining the patents is the true strategic masterstroke. Google realized that the mobile operations would not become profitable under its leadership—Motorola lost nearly two billion dollars in 18 months under Google, and the workforce shrank from 20,000 to 3,800. But the patents were valuable in their own right. By divesting the operationally loss-making business while retaining the strategically important portfolio, Google optimized both its balance sheet and its market position.

The Lesson for Software Companies

For over a decade, Google had underestimated the importance of patents. The official stance was: We build superior products, we win in the market, and patents are for NPEs (non-practicing entities). Starting in 2010, the mobile communications industry showed Google that this attitude is not sustainable in a market with hardware-related standards and established patent pools. Correcting this course cost $12.5 billion. Had Google begun systematically filing patents earlier, the same level of defense could have been achieved for a fraction of that amount.

What can a company learn from this?

The Google case serves as a warning to every growing technology company: Anyone who wants to scale a product in a patent-intensive field needs to build their own portfolio long before the first lawsuit is filed. Defense portfolios built reactively are expensive; Google paid $265,000 per patent plus billions in operating losses because it started too late. Proactive portfolios typically cost a few thousand euros per patent application. The cost difference between prevention and remediation ranges from a factor of 50 to 100. Companies that forego patents in their early growth phase and rely exclusively on product quality end up paying dearly for this convenience later on—if they can even afford to buy back the necessary patents at all.

Sources: CNN Money Google Motorola Closing · TechCrunch Announcement · Wikipedia Motorola Mobility · IEEE Spectrum Patent Armor · IEEE Spectrum Lenovo Sale · TechCrunch Lenovo Deal · MIT Technology Review · IBTimes Defense Offense

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Case 30 – Carl Zeiss SMT: 2,000 patents on EUV mirrors, without which modern chips cannot be manufactured (Strategic Partnership · Semiconductor Optics)

The background: In 1995, a small group of representatives from chip manufacturers and research institutions met in Oberkochen at Carl Zeiss. The topic: the future of optical lithography. The idea of exposing chip structures to extreme ultraviolet light with a wavelength of 13.5 nanometers was considered visionary and technically unrealistic at the time. The strategic and economic consequences of getting involved were unclear. Zeiss decided to get involved.

The result: Thirty years later, Zeiss SMT, together with ASML and Trumpf, is the global market leader in EUV lithography. Without Zeiss mirrors, there would be no EUV lithography systems—and without EUV lithography systems, there would be no modern chips. Zeiss holds over 2,000 EUV patents that safeguard the next generation of high-NA EUV technology. Together, Trumpf and Zeiss generate approximately one billion euros in revenue in the EUV segment and have created over 3,300 highly skilled jobs.

The Thirty-Year R&D Bet

EUV technology was extremely ambitious from a technical standpoint. The mirrors produced by Zeiss are the most precise in the world: if you scale an EUV mirror to the size of Germany, the largest irregularity would be one-tenth of a millimeter. Actuators and sensors operate with such precision that a reflected laser beam would hit a golf ball on the Moon. Achieving this level of precision requires decades of development work. Zeiss invested billions before even generating its first euro in revenue. The strategic advantage here: every stage of development was systematically patented, and with such density that imitation is practically impossible.

The ASML Architecture as a Strategic Lock-in

The decisive strategic move was not the technology, but the partnership. ASML and Zeiss established a division of labor in which Zeiss contributes the optics and ASML integrates the entire system. This may seem trivial, but it is structurally significant. Today, ASML is the world’s sole supplier of EUV lithography machines. Every single one of them contains Zeiss optics. The partnership began in 1986, and since then, the two companies have become so intertwined that it is practically impossible for a competitor to enter the market.

The patent landscape reinforces this interdependence. Zeiss holds approximately 2,000 EUV patents, while ASML holds over 15,000 patents covering all areas of lithography. Anyone wishing to enter the market would have to navigate two dense patent networks simultaneously. No one can do that—neither technically nor legally. The result is a de facto duopoly in the chip industry’s most advanced manufacturing processes, with Zeiss and ASML as economically inseparable twins.

The Network as a Third Layer of Protection

A network of approximately 1,200 partner companies has developed around ASML and Zeiss, all of which are collaborating on EUV technology. Trumpf supplies the CO₂ lasers that vaporize the tin droplets from which the EUV light is generated. Fraunhofer Institutes are collaborating on the mirror coatings. Universities in Germany, the Netherlands, and the U.S. are conducting research on individual components. This network is more than the sum of its parts. Every new contribution is filed for a patent somewhere within the network. Anyone seeking to copy the technology would have to replicate not only Zeiss and ASML, but also 1,200 partner companies.

The German Future Prize

In 2020, Zeiss, Trumpf, and Fraunhofer jointly received the German Future Prize for EUV lithography. The award marked the transition from a research technology to a production-ready standard. Starting in 2025/2026, the next generation—High-NA EUV—will enter mass production. 1,500 of Zeiss SMT’s 7,500 employees are currently working on this advancement. The patent portfolio established for this purpose comprises approximately 1,500 additional intellectual property rights, which will secure Zeiss’s technological leadership for the next ten to fifteen years.

What can a company learn from this?

Technological leadership in highly complex markets does not arise from individual inventions, but from decades of systematic patent work combined with strategic partnerships. Zeiss could not have brought EUV to market on its own. The partnership with ASML was the catalyst that turned a research technology into a global market product. Anyone who wants to succeed in a highly specialized field of technology should not only manage their own patents but also actively seek out partners whose patents complement their own. Joint patent networks are orders of magnitude more difficult to breach than individual portfolios.

Sources: Zeiss 175 Years · Zeiss 30 Years of EUV · Zeiss EUV European Project · SemiWiki Interview · WIOT Group EUV

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Case 31 – Festo: The Valve Terminal and How a Family-Owned Company Has Built Up 2,800 Patents (Innovation Density · Automation)

The background: Festo was founded in Esslingen in 1925. In the 1950s, the company became the first in Europe to use compressed air as a power source in industrial automation. In doing so, Festo positioned itself in a niche market that was still in its infancy at the time and lacked established standards.

The result: Today, the Festo Group generates 3.45 billion euros in revenue with 20,600 employees worldwide and holds approximately 2,800 patents globally. The research-and-development budget remains steady at about 8.8 percent of revenue. Each year, Festo brings approximately 100 patent-eligible new products to market. In 2010, the company was awarded the German Future Prize.

The Valve Island as a Platform Innovation

In 1989, Festo introduced the valve island. That may sound technical, but it was a strategic paradigm shift. Until then, pneumatic valves had been wired and controlled individually. In complex machines with dozens of actuators, this resulted in a significant amount of wiring, which made production systems expensive and prone to errors. The valve island consolidated multiple valves into a single central module with a single signal line for control. This saved users wiring costs, reduced sources of error, and enabled more compact machine designs.

From a patent law perspective, the valve island was a platform innovation: it created a new product category that Festo was able to extensively protect with patents over the years. Every further development—improved connection technology, integrated sensors, digital communication—built upon the basic architecture and was protected separately. The result is a web of intellectual property rights from which competitors such as SMC and Norgren were unable to break free for years.

The Digital Motion Terminal 2017

In 2017, Festo launched the digitized Motion Terminal—a valve island in which the function of individual valves is configured via software. What used to be fixed at the hardware level as a single valve can now be reconfigured in seconds using an app. This is Industry 4.0 in the truest sense: the separation between hardware and application is bridged by software. Festo has protected this architecture with several patent families, thereby expanding the niche once again—this time toward software.

The Bionic Learning Network

Since 2006, Festo has been operating the Bionic Learning Network, a research initiative that applies movement principles from the animal kingdom to technology. SmartBird (bird flight), BionicOpter (dragonfly), and AirPenguin are demonstration models that are showcased at trade shows to attract public attention. However, the real benefit lies elsewhere: every year, this research yields patents that are incorporated into regular products. The Bionic Learning Network is, in effect, an R&D department disguised as a marketing tool that generates patents.

Open Innovation as a Deliberate Strategy

Festo has been actively collaborating with startups and pursuing open innovation for years. This only makes strategic sense if a company’s own patent portfolio is large enough to protect key ideas anyway. Smaller companies can rarely afford open innovation because they risk being absorbed by partners with broader portfolios. Festo can afford it because its 2,800 intellectual property rights provide a stable framework for negotiations.

What can a company learn from this?

Platform innovations such as the Festo valve terminal are particularly valuable from a patent strategy perspective. They open the door to an entire family of further developments, each of which can be patented separately. Anyone developing a system architecture in mechanical engineering, automation, or sensor technology should protect not only the product itself but also the architectural level. This is especially true when the architecture includes a software-hardware interface. Incidentally, Festo’s 8.8 percent R&D ratio serves as a practical benchmark for medium-sized companies in technology-oriented industries.

Sources: Festo Press Center · Festo Global Market Leader Index · Automation.at · Forum Infrastruktur · German Economy Encyclopedia

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Case 32 – Krones: 7,058 Patents Secure a 25 Percent Global Market Share in Beverage Bottling (Full-Service Provider Strategy · Beverage Machinery)

The background: In 1951, Hermann Kronseder began manufacturing semi-automatic labeling machines of his own design in Neutraubling, near Regensburg. At that time, the beverage industry was dominated by medium-sized breweries and regional bottlers. There were no large, specialized machine manufacturers in Germany; foreign competitors such as Sidel and KHS were developing their businesses at the same time.

The result: Krones currently holds 7,058 registered patents and utility models and has a global market share of approximately 25 percent in beverage filling technology. One in every four beverage containers worldwide passes through a Krones system. The company employs approximately 16,000 people, and exports account for just under 90 percent of its business. Revenue exceeds 5 billion euros.

Growth Through Acquisitions

Krones used strategic acquisitions to transform itself from a labeling machine specialist into a full-service provider. Anton Steinecker Maschinenfabrik (brewhouse construction) followed in 1983, Zierk Maschinenbau (bottle cleaning machines) in 1988, Max Kettner (packaging machines) in 1998, and Sander Hansen (pasteurization systems) in 2000. With each acquisition, Krones took over not only the machinery but also the respective patent portfolios. This is strategically important: A full-service provider needs patents in all sub-disciplines to be able to offer a bottling line from a single source without having to pay licensing fees to competitors.

Why 7,058 Patents Are a Moat

A modern bottling plant is not a single machine, but rather an integrated production line consisting of an stretch-blow molding machine, a filler, a capper, a labeler, a packaging machine, a palletizer, and an intralogistics system. Each of these components involves patent-related intricacies: the high-speed rotary design of the filler, the heating strategy in stretch blow molding, and the contact unit in the labeling machine. With 7,058 intellectual property rights spread across all these areas, any competitor seeking to build a comparable turnkey system would inevitably run into Krones patents somewhere. Sidel and KHS have built up their own portfolios, but neither has achieved the same overall depth. That is the true competitive moat.

PET Recycling as a New Front in Patent Litigation

With the Metapure process, Krones has developed its own PET recycling technology in which PET flakes are washed, gradually tempered, and decontaminated so that the recycled PET becomes food-grade. This addresses the sustainability requirements of the beverage industry and opens up a new area of patent protection. EU directives on the proportion of recycled content in beverage packaging will dramatically increase the demand for recyclable systems in the coming years. Krones is well-positioned in terms of patent protection to meet this demand.

Rotary vs. Linear as a Business Model Patent

Krones’ key design feature for filling and capping machines is the rotary concept. Bottles move along a rotating carousel and are filled and capped while the carousel rotates. This enables filling capacities of tens of thousands of bottles per hour—far exceeding what linear systems can achieve. The rotary principle is patented in many variations. Anyone operating high-performance beverage bottling lines needs rotary technology. Anyone seeking top-quality rotary technology turns to Krones.

400 patent applications per year

In 2010, Krones filed approximately 400 new patents—that’s more than one filing per workday. The R&D ratio stands at around 5 percent of revenue. In addition, there are Innovation Labs in Regensburg and, since 2023, in Parma, Italy, which specifically develop new applications for the beverage industry. The steady pace of patent filings ensures that the portfolio does not become outdated, even as older intellectual property rights expire.

What can a company learn from this?

Any company that offers a complete process line or system benefits disproportionately from broad patent coverage. Every individual step that competitors have not patented themselves forces them to pay licensing fees or find a way around it. Both approaches make their overall offering more expensive or technically inferior. Companies active in plant engineering should develop their patent strategy across the entire value chain—not just for their core product. And targeted acquisitions of smaller specialists can be a quick way to round out their own patent coverage.

Sources: Wikipedia Krones · Global Market Leader Index · Avesco Hidden Champion Profile · Gevestor Analysis

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Case 33 – Miele: Gentle-Wash Drum, Cutlery Drawer, and the “Always Better” Principle (Brand Management · Home Appliances)

The starting point: On July 1, 1899, Carl Miele and Reinhard Zinkann founded a company in Herzebrock with eleven employees. First product: a milk centrifuge. The first Miele washing machine followed in 1901. From the very beginning, the company positioned itself in the premium segment—a challenging market where quality, not price, is the main selling point.

The result: In 2023, Miele generated revenue of approximately 4.96 billion euros with over 22,000 employees in 49 countries. The company remains wholly family-owned to this day: 51.1 percent Miele, 48.9 percent Zinkann. Miele has become one of the most respected premium brands in German business history.

The Patented Gentle Drum 2001

To mark the 100th anniversary of the Miele washing machine, the company introduced the patented “Schontrommel” drum with a honeycomb structure in 2001. Instead of the smooth drum wall with many round holes that had been standard until then, the “Schontdrum” features a honeycomb-shaped structure that curves inward, with significantly fewer and smaller openings. That may sound like a minor detail. In fact, it is a textbook example of patent strategy for premium products.

The result: A film of water forms on the honeycomb surface, allowing the laundry to glide gently across it. Delicate fabrics are protected, while washing performance remains high. For customers in the premium segment, this is a clear, tangible advantage. And because the Gentle Drum was patented, Miele was able to market this feature as the sole provider for many years. Competitors could only offer inferior or different solutions. This made it easier to justify the price gap between Miele and its competitors.

The Cutlery Drawer, 1987

In 1987, Miele introduced the patented cutlery drawer for dishwashers. Instead of placing cutlery in a traditional cutlery basket—where it tends to get tangled and isn’t washed properly—it was placed in a flat upper drawer where each piece lay separately. Here, too, it was a practical detail that customers could really appreciate, protected by a patent, and marketable as a unique selling point. Competitors followed suit years later, once the patent protection had expired—but Miele had already solidified its reputation as the category leader.

The Logic Behind the Patent Strategy

Miele positions itself in the premium segment, where customers are willing to pay higher prices if they feel they are getting something better. Patents are particularly valuable there from a strategic standpoint because they provide technical backing for the core message: “We build differently—and measurably better.” Marketing can cite patents, not opinions. This reinforces the brand’s credibility.

Added to this is the brand’s fundamental durability. Miele claims that its washing machines last 20 years. This claim is verifiable—and over the decades, Miele has patented core components that technically enable precisely this durability: reinforced bearings, higher-quality drums, and longer-lasting seals. Each of these patents is small on its own. Together, they form a dense network that sets Miele apart from mass manufacturers.

Pioneering the Smart Home Appliance Market

In 1998, Miele launched InfoControl, the first pager-based notification service for washing machines—well before the smartphone era. In 2008, the first automatic control system for the range hood, operated by the cooktop, followed. Today, Miele is positioning itself in the areas of AI-powered cooking and climate-friendly laundry and dishwashing. The focus of innovation may change, but the principle remains the same: Each generation brings new patents that justify the brand’s premium positioning.

The Strategic Acquisition of Eurofilters in 2021

In 2021, Miele acquired the Belgian company Eurofilters, which holds over 100 patents in 75 patent families related to vacuum cleaner bags and filter materials. This strengthened Miele’s position in a segment that is often overlooked: consumables. Following the Kärcher model, Miele benefits not only from appliance sales but also from ongoing consumables business—and this segment is now better protected by patents.

What can a company learn from this?

In the premium segment, every patent justifies a price premium. Customers are willing to pay more if they understand why. A patented feature with a clear benefit is more valuable to marketing than ten general quality arguments. Anyone who wants to position their company in the top third of the price range should closely align their patent strategy with their brand management. Patents on details that customers directly perceive are particularly effective—the gentle drum action is noticeable, the cutlery drawer is visible, and the durability is tangible.

Sources: Miele 125 Years · Miele History · Miele Milestones · Trend Worlds · Eurofilters

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Case 34 – Wago: How a Patent Purchased in 1951 Became a Global Spring-Clamp Empire (Acquisition · Connection Technology)

The background: In 1950, while playing cards in Berlin, brothers-in-law Heinrich Nagel and Friedrich Hohorst learned of a patent held by Berlin inventors Paul Wagner and Olbrich for a screwless leaf spring clamp. The two men spontaneously purchased all the rights, along with enclosures, springs, busbars, and rivets for an initial production run. The patent number was DE 838778. On April 27, 1951, they founded Wago Klemmenwerk GmbH in Minden—named after the inventors Wagner and Olbricht.

The result: Today, Wago is the global market leader in spring-loaded terminal technology. The Cage Clamp connection technology, which has been on the market since 1977, is considered the global industry standard. The company has manufacturing facilities in nine countries—Germany, France, Switzerland, the U.S., Japan, India, China, and Poland—and employs several thousand people. The spring-loaded terminal has become an indispensable part of industrial electrical installations.

A Purchased Patent as the Foundation of a Business

The story of Wago’s founding is unusual. The company was not built around an invention of its own, but around a purchased patent. Nagel and Hohorst had recognized that the idea of a screwless terminal block had enormous potential—even though the materials available at the time did not yet allow for its implementation. The early years were correspondingly difficult. The available spring steels lacked the necessary ductility, and the terminals did not function reliably. Many would have given up at this point. Nagel and Hohorst persevered.

This is an important strategic point: A patent that cannot yet be implemented technically can still be a good investment if you have the time to wait for the technology to mature. Wago waited 25 years for the breakthrough.

The Breakthrough with Cage Clamp in 1977

In 1977, Wago succeeded in bringing the cage tension spring to market as the Cage Clamp connection technology. What makes it unique: The terminal requires no additional spring elements; the tension spring itself serves as the contact. Even before its market launch, Wago sold the first 30,000 units. The Cage Clamp became the standard in lighting fixtures, relays, and terminal blocks. The key advantage: A screwless connection is faster to install, maintenance-free, and vibration-resistant. For industrial applications, this was an irresistible selling point.

A Strategic Approach to the 1995 Patent Expiration

In 1995, the original Cage Clamp patent expired. This is a critical moment for any company: from that point on, competitors can replicate the patented technology. Wago responded with a clever two-pronged strategy. On the one hand, the company had by then built up a broad portfolio of further developments that complemented the basic mechanism and were themselves patented. On the other hand, Wago consistently marketed the “Cage Clamp” brand name as a seal of quality. The slogan “If you’re going to use spring-clamp technology, go with the original” was not just marketing but a strategic positioning: Wago was the inventor, and the brand stood for proven quality. The expiration of the patent became a driver of growth, not a setback, because the brand was already well established.

The Push-in Cage Clamp: The Next Generation

In 2003, Wago introduced the Push-in Cage Clamp technology to the market. With this advancement, single-strand and fine-strand conductors with ferrules can be inserted directly without tools. This technology was also patented and today forms the core of numerous Wago products. The basic logic: Each generation is protected by new patents, while the previous generation enters the public domain. This allows the company to remain a technology leader in the long term, even as individual patents expire.

Expansion into Industry 4.0

With the Wago I/O System, introduced in 1995, Wago expanded its market into automation technology. The modular system supports over 16 fieldbus and network protocols. Here, too, Wago relies on a combination of technical openness and patented core components. The company has thus repeated the same strategic pattern it used with its terminal blocks: an open standard that promotes widespread adoption, combined with patented core elements that ensure added value.

What can a company learn from this?

You don’t have to invent something yourself to build a patent empire. Purchasing a promising patent—especially when the inventors lack the resources to commercialize it—can be more cost-effective than conducting your own basic research. The founding of Wago in 1951 cost just a few thousand marks; today, the company is a global market leader. Two factors are crucial here: First, the patent must be a true platform innovation from which many further developments can be derived. Second, the buyer needs the patience to see the patent through a phase of technical immaturity. Anyone in the SME sector looking for strategic options should regularly screen the market for available patents—university spin-offs, bankruptcies, and individual inventors are the most common sources.

Sources: Wago Company History · Wikipedia: Wago · Elektrotechnik Vogel · Home of Welding: 50 Years · Wikipedia: Spring-Loaded Terminal Block

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Case 35 – AbbVie and Humira: 247 Patents as a Fortress for the $200-Billion Blockbuster (Patent Thicket · Biologics)

The background: Humira (active ingredient adalimumab) was approved by the FDA in 2002 and is a monoclonal antibody used to treat rheumatoid arthritis, Crohn’s disease, ulcerative colitis, and psoriasis. The core patent expired in 2016. In any other industry, this would have opened the market to competitors. However, AbbVie, which acquired Humira in 2013 as a spin-off from Abbott, had a different strategy in mind from the outset: the expiration of the core patent was not intended to open the market to competition.

The result: Humira became the first drug worldwide to surpass the $20 billion annual sales mark. In 2019, it generated $19.7 billion in sales, and by 2021, that figure had already reached $20.7 billion. Cumulatively, Humira has generated over $200 billion in sales. Biosimilars did not enter the U.S. market until 2023—seven years after the expiration of the core patent. The last downstream patent is not scheduled to expire until 2037.

The Construction of the Patent Thicket

AbbVie filed a total of approximately 247 patent applications for Humira, of which 132 were granted. Ninety percent of these applications were filed after Humira had already been launched. Nearly half were filed after 2014, specifically in anticipation of the core patent’s expiration in 2016. The patents did not cover the active ingredient itself—which would no longer have been possible anyway—but rather formulations, dosing regimens, methods of administration, manufacturing processes, sterile packaging, and every conceivable application for the various indications.

This practice is known in the pharmaceutical industry as a “patent thicket” or “evergreening.” Taken individually, many of these patents are weak. Some revolve around packaging details or formulation changes that make little clinical difference. Taken together, however, they form such a dense web that it is practically impossible for a biosimilar manufacturer to bring a competing product to the U.S. market without infringing at least one of the 132 patents. The FTO (Freedom to Operate) analysis leads to the same conclusion for every potential generic manufacturer: too many obstacles along the way.

Why Biosimilar Manufacturers Did Not File Lawsuits

Six biosimilar manufacturers had Humira generics in the pipeline. All six decided against taking legal action. The reason is economically sound: A legal battle against 132 patents across multiple courts can easily cost between 50 and 100 million dollars and take years. Even if the challenger were to invalidate every single patent, the economic benefit is questionable: In the meantime, AbbVie continues to generate billions in revenue. Instead of suing, the manufacturers reached settlements with AbbVie that had a clear structure.

The settlements allowed biosimilar manufacturers to begin selling in Europe starting in October 2018. In return, they agreed not to enter the U.S. market until 2023—that is, for another five years after the core patent expired. In addition, the manufacturers agreed to pay royalties to AbbVie on their future U.S. sales. AbbVie thus received a twofold safeguard: a five-year delay in U.S. market entry plus ongoing fees from future biosimilar sales.

The antitrust lawsuits came to nothing

Unions, insurers, and the City of Baltimore sued AbbVie for patent abuse and anti-competitive conduct. Their argument: The “patent thicket” constitutes an abuse of the patent system with the aim of hindering competition. A U.S. appeals court dismissed the lawsuit in 2022, thereby confirming the legality of AbbVie’s strategy. The judge based his decision on the Noerr-Pennington doctrine, which generally protects the filing of patents as an exercise of a fundamental right. This made it clear: as long as the individual patents formally meet the requirements for grant, their accumulation—even in large numbers—is permissible.

Why the Strategy Worked—Three Factors

First, the structure of the FDA approval process for biosimilars. Under the Biologics Price Competition and Innovation Act (BPCIA), biosimilar manufacturers are required to provide the originator with their marketing authorization documents. This allowed AbbVie to identify any potential patent infringement early on and file a lawsuit before the biosimilar entered the market. This shifted the cost burden almost entirely to the generic manufacturers.

Second, the complexity of biologics. Biosimilars are not true generic drugs. They must undergo a complex manufacturing process, clinical trials, and regulatory approval. Development costs range from $100 million to $250 million per biosimilar. Anyone investing that much cannot afford to take a chance on patent uncertainty.

Third, the sheer volume of patents. The decisive factor was not the quality of the individual patents, but their number. Circumventing 132 patents at once is exponentially more difficult than invalidating a single one. AbbVie consistently exploited the structure of the U.S. patent system, which places no limit on the number of patents per product.

The Successors: Skyrizi and Rinvoq

AbbVie didn’t wait for the patent protection to expire. While managing the expiration of Humira’s patent, the company invested heavily in Skyrizi (risankizumab) and Rinvoq (upadacitinib), two successor drugs. By 2025, the two are expected to generate a combined $17.5 billion in revenue—the successor is already in position when the main revenue driver faces serious biosimilar competition.

What can a company learn from this?

A strategic patent portfolio centered around a core product can significantly extend the effective protection period beyond that of the core patent. This applies not only to the pharmaceutical industry. In mechanical engineering, medical technology, and specialty chemicals as well, patents can be obtained for manufacturing processes, formulations, methods of use, and accessories related to a main product. Those who plan this strategy early—AbbVie began as early as ten years before the core patent expired—can extend the product lifecycle by five to ten years. The ethical implications are controversial, but the business effectiveness is not. AbbVie has secured over $200 billion in revenue using this approach.

Sources: Harvard Petrie-Flom Center · SSRN Knox/Curfman · AJMC $20 Billion Drug · BioPharma Dive · BioSpace Lessons from Humira · STAT News Appeals Court

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Case 36 – Merck and Keytruda: How to Prepare for a $30 Billion Patent Cliff (Patent Cliff Management · Oncology)

The background: Keytruda (pembrolizumab) is a PD-1 immune checkpoint inhibitor approved for numerous cancer indications. The drug became the world’s best-selling cancer drug. In 2024, Merck generated $29.5 billion in revenue from it—about 42 percent of the company’s total revenue. By 2025, that figure is estimated to have exceeded $30 billion. The U.S. substance patent expires at the end of 2028, and European patent protection expires in 2031. A loss of exclusivity means a potential decline in revenue of up to $35 billion over the course of a few years.

The result: Merck is pursuing a five-pronged strategy to mitigate the cliff: a patent thicket comprising 129 applications, a subcutaneous reformulation, combination therapies with Eisai, the acquisition of new pipeline assets (Harpoon Therapeutics), a $3 billion cost-cutting program, and a restructuring of the oncology division. The company’s handling of the cliff is becoming a textbook example.

The Initial Situation

Keytruda was first approved by the FDA in 2014, initially for metastatic melanoma. Since then, Merck has conducted or supported more than 2,200 clinical trials to expand its range of uses. Today, Keytruda is used to treat lung cancer, melanoma, head and neck tumors, gastrointestinal carcinomas, renal cell carcinoma, bladder cancer, cervical cancer, and numerous other indications. Each new indication brought new study data—and with it, new opportunities for downstream patents. Cumulative sales have exceeded $74 billion and could reach the $100 billion mark by 2029.

The Patent Thicket: 129 Patent Applications

According to research by the nonprofit organization I-MAK, Merck has already filed 129 patent applications for Keytruda, more than half of them after the initial FDA approval. Fifty-three patents have been granted. I-MAK estimates that Americans will spend at least $137 billion on Keytruda before biosimilar competition begins. This is a direct continuation of the Humira model: a patent thicket that supplements the original substance patent and extends effective protection by years.

The Subcutaneous Reformulation as a Product Hop

The strategic centerpiece is Merck’s development of a subcutaneous formulation of Keytruda. Currently, the drug is administered intravenously over 30 minutes. The new subcutaneous formulation can be injected in less than two minutes, requires fewer hospital resources, and is significantly more convenient for patients. To this end, Merck is filing for new patents with independent terms that extend beyond 2028. The logic behind this is a classic “product hop”: patients will be switched to the new formulation before the IV version faces competition from biosimilars. By the time biosimilars for the IV formulation become available in 2028, the majority of patients will already be on the patent-protected subcutaneous version.

The logic is clear: Even if only 60 to 70 percent of Keytruda patients are switched to the SC formulation, Merck will save the lion’s share of its revenue from the cliff. A 30 percent loss is still better than a 90 percent loss, which would be the likely outcome without this strategy.

Combination therapies as a second line of defense

At the same time, Merck is continuing to develop Keytruda in combination with other active ingredients. An extensive collaboration with its Japanese partner Eisai is underway for Keytruda plus Lenvima. The LEAP-015 study investigated the combination in gastroesophageal adenocarcinoma. Each approved combination creates a new treatment option that can be protected separately under patent law. Biosimilar manufacturers that only replicate the single-agent drug cannot serve these combination markets.

Pipeline Acquisitions

In 2024, Merck acquired Harpoon Therapeutics for several billion dollars. Harpoon develops T-cell engagers, a new class of cancer drugs. Further acquisitions followed. At the same time, in July 2025, Merck announced a $3 billion cost-cutting program to be completed by the end of 2027 in order to reallocate funds toward pipeline development. In March 2026, Merck spun off its oncology division into a separate business unit—a strategic signal that 2028 would be treated as a franchise transition rather than a routine event.

What This Means for Patent Planning

Merck has about 14 years between Keytruda’s approval and the expiration of its core patent. The strategy did not begin shortly before the cliff, but as early as 2022—six years before expiration. Experience shows that successfully avoiding the cliff requires at least five to seven years of lead time: new formulations must undergo clinical testing, combination therapies require regulatory trials, and pipeline acquisitions must be integrated. Anyone who doesn’t take the cliff seriously until just three years beforehand is bound to lose out.

What can a company learn from this?

A patent expiration does not have to result in an inevitable drop in revenue; rather, it is a transition that can be managed. The tools are well known: reformulation, combination therapies, the patent thicket, product hop, pipeline acquisitions, and restructuring. But all of these tools take time. Any company with a major revenue driver in specialty chemicals, medical technology, or another patent-sensitive industry should begin implementing the “cliff” strategy at least five years before expiration. The question is not whether patent protection will end—but how the company will manage the transition. Merck demonstrates that even a 30-billion cliff is manageable if preparations begin well in advance of the deadline.

Sources: Grand View Research · CSRxP Merck Strategy · OncoDaily Restructuring · PharmExec JP Morgan 2026 · ICIJ Cancer Calculus · MedPath Cost Reduction

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Case 37 – Bayer and Roundup: When a Patent Purchase Turns into a $20 Billion Trap (Counterexample · Agrochemicals)

The background: Monsanto patented the herbicidal effect of glyphosate in 1971. Commercial marketing under the Roundup brand began in 1974. The U.S. patent on glyphosate expired in 2000. After that, Chinese and other generic manufacturers entered the market. In 2009, glyphosate products still accounted for about 10 percent of Monsanto’s revenue, while the entire Roundup family accounted for about half. The Roundup Ready seed patents continued to ensure a profitable integrated system consisting of the herbicide and resistant crop varieties. In 2018, Bayer acquired Monsanto for $63 billion.

The result: In the ten months following the acquisition, Bayer’s stock lost 46 percent of its value. By 2020, Bayer had paid over $10 billion to settle approximately 125,000 lawsuits. By 2025, about 65,000 lawsuits were still pending, and verdicts totaling billions were added to the total. In 2026, courts approved another class-action settlement worth $7.25 billion. The total costs exceed $20 billion—and the trend is upward.

Why Bayer Bought Monsanto in the First Place

The strategic rationale behind the 63-billion deal was clear: Bayer had a strong pharmaceuticals division, but its agricultural chemicals business was relatively small. Monsanto was the global market leader in agricultural chemicals and seeds, with Roundup as its cash cow and Roundup Ready seeds as another area of intellectual property. The merger was intended to create an integrated agricultural conglomerate offering plant genetics, seeds, herbicides, and fertilizers all under one roof. From a patent strategy perspective, the deal looked smart: Bayer wasn’t just buying products, but an entire ecosystem of interconnected intellectual property rights.

What Bayer Overlooked

The due diligence focused on patents, regulatory approvals, and market positions. What was inadequately assessed was a different type of risk: exposure to product liability claims. Monsanto had known since the 1980s that there were scientific studies suggesting a link between glyphosate exposure and cancer. In 2015, the WHO’s International Agency for Research on Cancer (IARC) classified glyphosate as “probably carcinogenic”—three years before the Bayer acquisition. Internal Monsanto documents that later surfaced in court proceedings showed that the company had actively paid experts and influenced scientific studies.

The first blow came three months after the acquisition was completed: In August 2018, a California jury awarded a school groundskeeper $289 million in damages, ruling that Roundup had caused his non-Hodgkin’s lymphoma. The verdict was later reduced to $78 million, but it remained a landmark case. Within a few months, tens of thousands of additional lawsuits were filed. Bayer’s stock plummeted.

The Implications as a Lesson in Patent Strategy

Strictly speaking, the Roundup case is no longer a classic patent story—the substance patent had long since expired in 2018. But it serves as a strategic lesson for any M&A transaction in which patents play a role. A patent protects an invention from being copied. It does not protect against the consequences that the invention has on the world. If a product has been in widespread use for decades, liability claims can accumulate that only become apparent years later—and then render the entire investment obsolete.

Bayer had paid Monsanto for its intellectual property rights and market positions. What Bayer took on included the predecessor’s past decisions, including the refusal to take the IARC classification seriously and to include warning labels on Roundup packaging. The difference between the purchase price and the liability costs incurred later constitutes the actual calculation of transaction costs.

The Monsanto-DuPont Patent Dispute as a Contrast

It is worth contrasting this liability case with an earlier patent victory for Monsanto. In 2009, Monsanto sued DuPont Pioneer for infringing Roundup Ready patents. DuPont had already licensed the patents but had incorporated additional glyphosate-resistance genes into its seed, which Monsanto considered a breach of the license. On August 1, 2012, the jury ruled that DuPont had not only infringed the patents but had done so willfully. The damages award totaled $1 billion—at the time, the fourth-largest patent infringement award in U.S. history. In 2013, the parties reached a settlement. Monsanto was highly successful in its patent strategy. Its Achilles’ heel lay elsewhere: in the product’s side effects, which the patent could not address.

Why Bayer Is Sticking With It Anyway

Despite all the lawsuits, Bayer has not taken Roundup off the market. The reason is economic: Roundup and the Roundup Ready seed patents continue to be a billion-dollar business. If Bayer were to withdraw the product, it would amount to an admission of guilt and would further fuel the wave of lawsuits. Instead, Bayer is pursuing a multi-pronged strategy: settling individual cases, seeking regulatory support from the EPA (which continues to classify glyphosate as non-carcinogenic), appealing to the Supreme Court, and lobbying for uniform warning label regulations. In February 2026, a court approved a class-action settlement of $7.25 billion for the majority of the remaining 65,000 lawsuits.

What can a company learn from this?

In M&A transactions, the patent portfolio is only part of the bigger picture. Due diligence must also examine the target company’s past decisions regarding safety, environmental, and product liability issues. A strong patent on a product protects the company from imitation, but not from liability claims for health or environmental damage. Anyone who acquires a patent holder also takes on the holder’s entire history. In industries with long product life cycles—chemicals, pharmaceuticals, medical technology, and agricultural technology—the assessment of liability risks should be at least as thorough as the assessment of the intellectual property rights themselves. What cost Bayer $63 billion in purchase price is now costing the company far more in settlements and litigation costs.

Sources: Wikipedia Roundup · Wikipedia Monsanto Legal Cases · Bayer Class Settlement 2026 · Bayer Managing Litigation · Lawsuit Tracker April 2026 · Yahoo Finance Roundup Verdict

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Case 38 – ASML: How a Dutch Company Became the Patent Monopolist of the Chip Industry (Monopoly Position · Semiconductor Manufacturing)

The starting point: In 1984, ASML was founded in Veldhoven as a small joint venture between Philips and the Dutch company ASM International. Philips wanted to spin off its in-house lithography technology but had little ambition to turn it into a global player. Competitors such as Nikon and Canon dominated the global market, while American companies, including SVG Lithography, were also in the mix. For many years, ASML was an underdog that had to hold its own against more than a dozen established providers.

The result: Today, ASML holds over 15,000 patents and is the only manufacturer in the world that builds EUV lithography machines. The company employs over 42,000 people from 143 countries. ASML machines cost between $150 million and $400 million each, and every one plays a role in the production of every modern generation of chips. The company’s market value has at times exceeded 300 billion euros. Without ASML, there would be no modern smartphones, no AI chips, and no autonomous vehicles.

The “moonshot” bet on EUV

In the 1990s, Nikon and Canon focused on incremental improvements to existing deep ultraviolet (DUV) technology. ASML made a fundamentally different strategic decision: the company bet on extreme ultraviolet lithography (EUV) as the successor technology. At that time, EUV was considered technically nearly impossible. The wavelength of 13.5 nanometers is absorbed by any surface, which required a fully vacuum-sealed process. The mirrors had to be smooth at the atomic level. The light source had to use lasers to vaporize molten tin droplets 50,000 times per second. Decades of basic research were necessary before a functional prototype even existed.

To make this gamble, ASML needed two things: patience and intellectual property rights. The two were inextricably linked. Every single component—the plasma light source, the reflective optics, the wafer stages, the control software, and the beam guidance—was systematically patented. Over the course of three decades, this resulted in a portfolio of more than 15,000 patents today, covering every conceivable component of an EUV machine.

Intel’s Lobbying as a Strategic Lever

An often-underestimated strategic factor: Intel actively lobbied to make ASML the sole supplier. Intel deemed SVG Lithography too weak to deliver an EUV system and advocated for its acquisition by ASML. Intel also argued for ASML’s inclusion in the EUV LLC, a research consortium, and invested billions itself in development. Whoever brought EUV to mass production first would be Intel’s preferred supplier. From Intel’s perspective, ASML was the bet that paid off.

The consequence under patent law: When ASML acquired SVG Lithography in 2001, its U.S. patents were also added to the ASML portfolio. This meant that ASML held not only its own European intellectual property rights but also the most important U.S. counter-patents, which could have hindered a competitor.

The Network of 5,000 Suppliers

A single EUV machine consists of over 100,000 individual parts. ASML itself manufactures only a small portion of them. About 5,000 Tier 1 suppliers provide components: Zeiss supplies the optics, Trumpf the CO2 lasers, Cymer (now acquired by ASML) the light sources, and Carl Zeiss SMT the mirrors. Each of these partners holds its own patents in its area of expertise. At the core of its business model, ASML has created a structure in which its patent base consists not only of its own 15,000 intellectual property rights, but also of the combined portfolio of 5,000 partner companies that work exclusively or primarily for ASML.

This structure is virtually unassailable by a competitor. Even if Nikon or Samsung wanted to develop an alternative EUV system, they would have to circumvent not only ASML’s patents but also the patents of its 5,000 partner companies. This isn’t a traditional patent barrier—it’s an ecosystem lock-in.

The 40-Percent Gross Margin

The economic impact of the patent strategy is evident in the numbers. ASML’s gross margin consistently exceeds 50 percent—an unusually high figure for a manufacturer of industrial goods. The reason is not manufacturing efficiency, but absolute pricing power: Anyone who wants to manufacture a cutting-edge chip cannot bypass ASML. While TSMC and Samsung negotiate discounts, ASML is essentially the price-setter, not the price-taker. The same ASML that was still an underdog 30 years ago can now command prices in the hundreds of millions to billions per machine, with no alternative available to the customer.

Geopolitics as a Framework

The U.S. and Dutch governments have restricted the export of certain ASML machines to China. As a result, even with enormous investments, China cannot build its own EUV industry because the key technology—ASML’s network of patents and components—is inaccessible. SMIC, TSMC’s Chinese competitor, continues to manufacture using older DUV technology. Chinese investments of over $100 billion in its own lithography research have so far failed to produce a mass-market product. The patent-based barrier is real and effective.

What can a company learn from this?

A strategic technology bet with a long-term horizon requires two things: patient capital and systematic patent work from day one. ASML’s EUV bet lasted from 1995 to 2019, when the first commercially viable machines were delivered—a span of 24 years. During that time, approximately 15,000 patents were filed. No company can finance that solely through quarterly earnings. Anyone wishing to pursue a similar strategy must involve shareholders or owners from the very beginning. And they must understand that patents do not merely protect individual inventions, but safeguard an entire ecosystem—together with the patents of suppliers and research partners. This is not a lone-wolf model, but a network strategy at the highest level.

Sources: Mazi Asset Management · Georgetown CSET EUV Paper · Strange VC 30-Year Monopoly · Patsnap EUV Patent Report · WIOT Group EUV Interview

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Case 39 – Heraeus: 5,500 Patents, Quartz Glass, and Platinum Smelting—A 360-Year Success Story (Diversification · Specialty Materials)

The background: The Heraeus family had been operating a pharmacy in Hanau since 1660. In 1851, Wilhelm Carl Heraeus founded the “First German Platinum Smelter W. C. Heraeus.” The background: At that time, it was practically impossible to smelt platinum industrially in Germany because the temperature of around 1,770 degrees Celsius was too high for the furnaces available at the time. Heraeus developed a process for large-scale smelting, thereby laying the foundation for Germany’s precious metals industry.

The result: Today, the Heraeus Group holds approximately 5,500 patents and operates in four business segments: Metals and Recycling, Health, Semiconductor and Electronics, and Industrials. The company employs over 17,000 people in more than 40 countries and ranks among Germany’s top 10 family-owned businesses. Its revenue is in the double-digit billions.

The quartz glass patent as the second cornerstone

Heraeus’s true transformation into a technology group came in 1899 with an invention that seems self-evident today: Richard Küch, chief chemist at Heraeus, developed a process for manufacturing transparent quartz glass. Quartz glass is highly pure, heat-resistant, and optically clear—properties that became indispensable for lamps, laboratory equipment, UV applications, and later for the entire semiconductor industry. Heraeus patented the process and its product applications.

The quartz glass patent was a platform innovation in the traditional sense: it paved the way for an entire product family that would continue to grow for more than a century. Quartz glass for laboratory equipment gave rise to UV lamps for medical and water purification applications. These UV lamps led to the first artificial tanning lamp in 1904. This was later followed by high-purity quartz glass for semiconductor processes and optical fibers for telecommunications. Each generation of applications brought new patents.

Diversification as a Patent Strategy

Heraeus serves as a prime example of how a family-owned company has strategically diversified its patent portfolio across generations. From its core business of precious metal processing, the company expanded into sensors, dental products, medical applications (the first artificial heart valve), biomaterials, and specialty semiconductor materials. Each diversification was not a random expansion but followed technical synergies. The company’s expertise in high-purity materials, high-temperature processes, and precious metal chemistry could be applied in adjacent markets.

This strategy has a core focus on patent strategy: Those who build up and protect knowledge in a discipline over decades can transfer that knowledge to related fields and establish new intellectual property rights there before competitors do. Heraeus refers to this as its philosophy: “Which physical or technical restrictions can be overcome, and which boundaries can be pushed?” This question generates new patent applications from the research divisions every year.

Vacuum melting as a groundbreaking innovation

Under the leadership of the company founder’s grandsons—Wilhelm Heinrich and Reinhard Heraeus—the company intensified its research into vacuum melting beginning in 1927. This technology made it possible to create entirely new alloys for the emerging electrical and communications industries. History repeated itself: A process innovation, patented and protected, gave rise to a product family that grew over decades. After World War II, when parts of the facilities had been destroyed, Heraeus leveraged its technological expertise to enter the platinum thermometer production and sensor technology sectors—once again drawing on its accumulated patent knowledge.

The Argor-Heraeus Acquisition in 2017

In 2017, Heraeus acquired full ownership of the Swiss refinery Argor-Heraeus. This is a prime example of a typical patent and market consolidation strategy: The acquisition brings not only production capacity but also the patents and certifications (LBMA) of the acquired company. For a global precious metals processor, these certifications act as barriers akin to patent rights: Those with LBMA certification are permitted to trade physical gold and silver bars on the global markets. Those without it are shut out.

What can a company learn from this?

A long-standing family-owned business can use patents as a diversification tool across generations. The key is that the diversification makes technical sense: from platinum smelting to quartz glass, from quartz glass to UV radiation, from UV radiation to semiconductor manufacturing and water treatment—each step builds on existing knowledge and extends it into an adjacent market. A medium-sized company that builds up such a patent portfolio over 20 or 30 years can achieve a monopoly position in niches—even in more traditional industries—that are too small for large corporations and too capital-intensive for startups.

Sources: CHEManager 150 Years of Heraeus · Wikipedia: Heraeus · Martin Kaessler: Heraeus Dossier · MP Precious Metals

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Case 40 – Schaeffler: The 1950 Needle Cage Patent as the Foundation of a Rolling-Bearing Empire (Core Patent Strategy · Rolling Bearings)

The starting point: In 1946, brothers Wilhelm and Georg Schaeffler founded Industrie GmbH in Herzogenaurach. Postwar Germany needed simple, reliable machine components, and the brothers started with a limited product portfolio. The decisive step came in 1950: Georg Schaeffler filed a patent application for his idea of a special needle roller bearing. The core concept: needle rollers do not run freely but are guided through a cage in a direction parallel to the axis.

The result: Today, Schaeffler holds over 26,500 patents and files more than 1,850 new patent applications annually. The Group is one of Germany’s most innovative companies. Under the INA, FAG, and LuK brands, it manufactures precision components for the automotive, mechanical engineering, and aerospace industries. In 2023, Schaeffler generated 16.3 billion euros in revenue with approximately 83,300 employees.

The Needle Cage Patent as the Original Invention

The 1950 needle cage patent was technically simple but fundamental. Until then, needle rollers had been arranged loosely in bearings, which led to friction and wear. Georg Schaeffler’s idea of guiding the needles parallel to the axis within a cage made it possible to create more compact, higher-performance, and longer-lasting bearings. The prototype was brought to production readiness that same year. The basic concept of the patent was so clear that competitors were unable to circumvent it for over a decade.

The strategic distinction: Schaeffler did not develop a single product from this concept, but rather a platform. Building on the basic idea of the guided needle roller bearing, the company has developed a wide variety of variants over the decades for automotive, industrial, and aerospace applications. Each variant led to new, complementary patents. Over the course of more than seventy years, a single core patent grew into a portfolio of 26,500 intellectual property rights.

The Three Brands as a Single Entity Under Patent Law

Schaeffler grew not only organically but also through targeted acquisitions, each of which brought its own patent portfolios. In 2001, Schaeffler acquired FAG Kugelfischer, the long-established German bearing specialist—a hostile takeover that was initially controversial but a perfect fit from a patent strategy perspective: For decades, FAG had accumulated its own roller bearing patents, which now, together with the INA patents, formed a comprehensive portfolio. LuK, a long-standing member of the Schaeffler Group, complements the automotive sector with patents for clutch systems.

From a patent law perspective, the consolidation of the three brands under one roof meant that Schaeffler now controls virtually all relevant intellectual property rights in several related areas of rolling-element and drive technology. Anyone seeking to develop a needle roller bearing, a ball bearing, a clutch, or a camshaft actuator for the automotive industry cannot avoid Schaeffler’s patents.

Cronitect as a modern advancement

Cronitect is a patented high-performance steel developed by Schaeffler for rolling bearings operating under extreme conditions. The steel combines high hardness with corrosion resistance and passes the salt spray test according to DIN 50021 SS without any issues, even after 600 hours. The material is used in dry-running applications, with corrosive media, and in chassis components. Each application is patented separately. The logic is the same as with the original needle cage patent: a base material is patented, followed by application patents in multiple market segments.

1,850 patent applications per year

The figure is impressive and strategically important. 1,850 new patent applications per year amount to more than five per workday. 6,000 employees are engaged in development at 40 R&D locations, 16 of which are R&D centers. The pace of patent filing ensures that the portfolio does not become outdated, even as older intellectual property rights expire. For an automotive supplier, this is vital to survival: OEMs such as BMW, Mercedes, and Volkswagen select their suppliers based on technological strength, and the measurable indicator of this is the pace of patent filing.

The Transition to E-Mobility

Schaeffler faces an existential challenge: E-mobility requires fewer traditional powertrain components than internal combustion engines. Many patents in the areas of clutches and traditional transmissions are losing value. Schaeffler’s response was a massive expansion of its patent portfolio in electric motors, power electronics, and hydrogen systems. In 2019, Schaeffler joined the Bavarian Hydrogen Alliance. For wind turbines, Schaeffler offers low-friction bearings—a growing market. The strategy: build up a portfolio of patents in new technology fields before the old market shrinks.

What can a company learn from this?

A single, strong core patent can serve as the foundation for building a company over seventy years—but only if it consistently gives rise to a portfolio of further developments. Schaeffler’s needle cage patent from 1950 has long since expired. What remains is the market position that resulted from it and the 26,500 patents that have been built up over the years. Anyone filing an important patent today should think through the cascade of further developments from the very beginning: What variants, applications, and product categories can be built upon it over the next ten to twenty years? Each of these further developments requires its own patent protection.

Sources: Windkraft Journal · Schaeffler History · Schaeffler Technology · Wikipedia: Schaeffler · mecPro: Schaeffler Profile

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Case 41 – Knorr-Bremse: How the Kunze-Knorr Freight Train Brake Became the European Standard (Market Creation · Braking Systems)

The background: In 1905, Georg Knorr founded Knorr-Bremse GmbH in Berlin. Until then, freight trains were braked by handbrake operators who manually applied the brakes on individual cars at the signal of the locomotive engineer. The process was slow, prone to accidents, and unsuitable for long freight trains. There was no standardized air brake system for freight trains in Europe. Knorr wanted to change that.

The result: Knorr-Bremse now holds approximately 12,000 granted or pending patents and is the global market leader in braking and other systems for rail and commercial vehicles. Annual revenue stands at 7.9 billion euros. The Group invests more than 6 percent of its revenue in research and development and employs 4,216 people in R&D. Knorr-Bremse systems provide braking for trains and trucks in virtually every industrialized country in the world.

The Kunze-Knorr Freight Train Brake, 1918

The first major commercial success came in 1918 with the Kunze-Knorr freight train brake. The patented system rendered the hand brakes commonly used up to that point obsolete and enabled the locomotive engineer to apply the brakes to the entire train from a central location. The impact was enormous: serious accidents caused by brakes failing to engage in time were drastically reduced. For Knorr, the patent meant a monopoly in Germany and large parts of Europe for several years. The company was the sole supplier of these new freight train brakes.

This is a case study in market creation through patents. Knorr did not capture an existing market, but rather created a new standard through a patent-protected innovation. Every freight car built thereafter required a Kunze-Knorr brake or a compatible system. Patent protection secured the company’s market position, while at the same time the standard-setting effect ensured that the Knorr-Bremse brand remained firmly anchored in the industry’s consciousness even after the patent expired.

The Hildebrand-Knorr Brake: A Continuation

In 1931, the Hildebrand-Knorr brake (HiK brake) was introduced, developed in collaboration with Wilhelm Hildebrand. It quickly became the standard in 17 countries. By 1955, 280,000 of these brakes were in use worldwide. The pattern repeated itself: a patented advancement that replaced older versions and opened up new markets. The strategy was consistent: Knorr specifically sought partnerships with other engineers and companies, combined their ideas with its own expertise, and jointly secured patents for the collaborative developments.

The Truck Division from 1922 Onward

In 1922, Knorr-Bremse received its first patent for truck brakes. A year later, the company became the first in Europe to equip trucks with air brakes that simultaneously applied direct braking to all four wheels of the tractor unit and indirect braking to the four wheels of the trailer. Braking distances were dramatically reduced. By the end of the 1930s, approximately 90 percent of all German trucks with a gross vehicle weight between 7 and 16 metric tons were equipped with Knorr-Bremse systems. This was a remarkable market share that stemmed directly from the patented technology.

The disc brake for heavy-duty vehicles, introduced in 1969

In 1969, Knorr-Bremse unveiled its first disc brake for heavy-duty trucks—a hydraulically actuated caliper brake—at the IAA in Frankfurt. This was yet another platform innovation that would shape an entire generation of vehicle braking systems. To this day, Knorr-Bremse remains the global market leader in disc brakes and pneumatic braking systems for commercial vehicles.

The Digital Automatic Clutch

The latest development is the Digital Automatic Coupling (DAK) system for freight trains. It automates the previously manual coupling of railcars and enables digital communication between all railcars and the locomotive. For European freight transport, this would be a quantum leap: automatic brake testing, integrated train control, higher speeds, and reduced staffing requirements. Knorr-Bremse is positioning itself as one of the leading providers of this technology in terms of patents—once again following the same pattern: a patented innovation sets a new standard.

What can a company learn from this?

The most effective patent strategy is one that establishes a new standard. Knorr-Bremse has followed this pattern for more than a century: A patent-protected innovation becomes the de facto standard that the entire industry must adopt. Any medium-sized company or industry specialist capable of redefining a market should secure its intellectual property rights as broadly as possible and then actively work toward having them adopted by standards-setting bodies. A standard that begins as a patented innovation will continue to be identified with the inventing company for decades, even after the patent expires. This is brand-building through technology—and technology that is protected by patents.

Sources: Motointegrator History · Transportation: 120 Years of Knorr-Bremse · Wikipedia: Knorr-Bremse · Knorr-Bremse Sustainability Report 2022 · Knorr-Bremse Group

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Case 42 – Rohde & Schwarz: High-Frequency Measurement Technology as a Niche Strategy for a Family-Owned Company (Niche Strategy · Measurement Technology)

The background: In 1933, Dr. Lothar Rohde and Dr. Hermann Schwarz, two college friends, founded their Physical-Technical Development Laboratory in Munich. The two wanted to venture into the then-unexplored world of high-frequency technology. Measuring instruments for radio signals—and later for television and wireless communications—were practically unavailable in Germany. From the very beginning, the founders positioned their company in a niche that large industrial conglomerates did not serve.

The result: Today, Rohde & Schwarz is the global market leader in the manufacture of mobile communications and EMC measurement equipment, as well as transmission and measurement equipment for digital terrestrial television. The family-owned company generates revenue of 2.93 billion euros with 14,400 employees. It operates in approximately 70 countries and finances its growth entirely through its own resources—no initial public offering, no private equity, no quarterly reports.

Choosing a Niche as a Strategic Foundation

High-frequency measurement technology is a market that holds little appeal for large corporations: too specialized, too small, too technical. For a focused family-owned business, however, it is an ideal market. Customers—mobile network operators, broadcasters, the military, aviation authorities, and semiconductor manufacturers—are willing to pay high prices for precise measuring instruments. Competition is limited because the technical barriers to entry are high. Whoever leads in this niche will remain the leader for decades.

Rohde & Schwarz has understood this model from the very beginning and has consistently put it into practice. Patents are the key protection mechanism here: Each new generation of test equipment brings new intellectual property rights in specific areas such as frequency analysis, signal generation, noise measurement, time-domain reflectometry, and, most recently, 5G and 6G measurement technology.

The Five Pillars as a Means of Risk Diversification

Rohde & Schwarz currently operates in five strategic business areas: test and measurement, broadcasting and media technology, cybersecurity, secure communications, and radio monitoring and location tracking technology. Each of these areas constitutes its own patent family with its own development strategy. When one market experiences an economic downturn, the others support the company. This diversification within the high-frequency niche is strategically sound: all five areas use the same technological foundation but appeal to different customers.

The implication under patent law: Rohde & Schwarz holds patents in each of the five areas that exclude or at least hinder competitors. Taken together, this creates a portfolio that is worth far more than the individual technologies because its breadth also provides additional protection against asymmetric attacks.

The Decision on Independence

A strategic unique selling proposition: Rohde & Schwarz remains entirely family-owned to this day and has never gone public. This is unusual in the test and measurement industry—most competitors are publicly traded. This independence allows the company to invest in developments that will not generate revenue for another five or ten years. As early as 2016, the company was already investing heavily in research into 6G, quantum technologies, and AI-based measurement technology—long before these areas were ready for the market. These investments are reflected in patents that will not demonstrate their value until the next decade.

Christian Leicher, CEO and a member of the owner family, has publicly emphasized this long-term orientation on several occasions: “Since we are not subject to quarterly thinking, we plan and act with a long-term and sustainable perspective.” This is essential for a company with a patent-driven strategy. Patents build their value over years, not quarters.

The ZES Room Acquisition 2025

On July 1, 2025, Rohde & Schwarz acquired ZES Zimmer Electronic Systems GmbH of Oberursel. The family-owned company, based in Hesse, has been developing high-precision power measurement technology for four decades and holds the corresponding intellectual property rights. The acquisition fills a gap in the R&S portfolio: power measurement for e-mobility, renewable energy, and semiconductor testing. The acquisition follows the classic consolidation pattern in measurement technology: Larger manufacturers acquire smaller specialists and integrate their patents into their own portfolios.

The Strategic Role of Technological Sovereignty

Rohde & Schwarz is increasingly positioning itself as a provider of “technological and digital sovereignty.” This is not just marketing. The company supplies German and European government agencies, defense ministries, and operators of critical infrastructure. In times of geopolitical uncertainty, a European test and measurement equipment manufacturer that is not subject to foreign export controls is strategically important. The patent-based foundation of this positioning: Rohde & Schwarz holds intellectual property rights that make it independent—specifically in the areas that are sensitive for government customers (cryptography, radio monitoring, secure communications).

What can a company learn from this?

For medium-sized companies in Germany, a consistent niche strategy is one of the most effective paths to global market leadership. The key lies in three factors: First, a clearly defined technical niche that is too small for large corporations. Second, a consistent portfolio of patents built up over decades that secures the niche. Third, independence, which enables long-term investment. Rohde & Schwarz demonstrates that a family-owned company can establish a position in a highly specialized niche that even publicly traded corporations cannot challenge. The price for this: foregoing rapid growth and external capital markets. The reward: a lasting leading position that endures across generations.

Sources: Rohde & Schwarz Company · Global Market Leader Index · Company Profile · 90 Years of Tradition of Innovation

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Case 43 – Haloid and Chester Carlson: How a Photographic Paper Manufacturer Turned a Rejected Patent into a Billion-Dollar Business (Historical Case Study · Patent License)

The background: On October 22, 1938, in a small laboratory in the Astoria neighborhood of New York City, physicist and patent attorney Chester Carlson, together with his assistant Otto Kornei, successfully copied a document for the first time using electrical charges, powder, and heat. He called the process electrophotography, later xerography. Carlson filed a patent application for the invention in 1938—and subsequently encountered, as he himself put it, “a downright enthusiastic level of disinterest.” IBM turned it down. General Electric turned it down. RCA turned it down. Dozens of companies turned it down.

The result: Haloid Company, a small manufacturer of photographic paper based in Rochester, acquired the licensing rights to Carlson’s patent in 1947. In 1959, Haloid introduced the Xerox 914, the first fully automatic office copier. It became the best-selling industrial product of its time. Haloid changed its name to Xerox Corporation in 1961. Carlson, who had spent years developing his invention without earning a single penny, became a multimillionaire through licensing fees. Xerox became synonymous with copying.

Why Everyone Rejected the Invention

Carlson’s invention was real and functional. Yet no one wanted it. The reasons are instructive. Established companies had working products in related fields—wet copiers, blueprinting processes, carbonless copy paper—and saw no need to invest in an untested dry process. RCA and IBM were too large to be willing to take the risk of failure. The Batelle Memorial Institute was willing to support the development in 1944, but only in exchange for a 60 percent share of all proceeds.

This is a pattern that recurs time and again in the history of patents: disruptive inventions are initially rejected by the very companies that would benefit most from them. The reason lies not in a lack of intelligence on the part of decision-makers, but in the structure of their incentives. Those with a proven business model are reluctant to risk it for an untested technology.

What Set Haloid Apart

Joseph Wilson, head of the Haloid Company, met Carlson in October 1946. Wilson was no visionary in the romantic sense—he was a down-to-earth businessman who recognized that his photographic paper market would shrink in the long run. Haloid needed a new product. Xerography offered an opportunity, and Wilson was willing to take the risk. In 1947, Haloid acquired a limited license to Carlson’s patents, not the full rights. That was a deliberate decision: limited investment, limited exposure, and the option to acquire additional rights if the technology proved successful.

The first commercial Xerox machine, the Model A from 1949, was a failure. Customers sent the machines back: too complicated, too slow. Haloid could have given up at this point. Wilson persevered because the patent licensing network was already far enough along that pulling out would have cost more than continuing. The company found a niche market: the Model A could be used to produce printing plates for office offset printing. That wasn’t the original goal, but it was enough to keep the company afloat until the Xerox 914 was ready.

The Xerox 914 as a Turning Point

In 1959, the Xerox 914 hit the market—fully automatic, fast, and reliable. The machine revolutionized the office world. By 1961, Xerox had generated more revenue than in all previous years combined. The 914 became the best-selling industrial product of its time. Carlson’s patents, which had been rejected by everyone for more than twenty years, formed the legal basis for Xerox’s monopoly in the office copier market. The company used this window of opportunity to file additional patents for improvements and process variations, thereby solidifying its position.

The Lesson from Carlson’s Biography

Chester Carlson himself is a case study in how to handle patents. He was a physicist and patent attorney—and used that knowledge to carefully document and protect his invention before approaching even a single company. That comprehensive documentation was the reason the patents later held up for over two decades. Anyone who documents their invention poorly or unveils it too early without patent protection loses their rights before finding a licensee. Carlson did the opposite: first the patent, then the negotiations. That secured his profits, even if it took twenty years to get there.

What can a company learn from this?

If you have an invention that has been rejected by all the major players, you shouldn’t necessarily doubt the invention. Sometimes the pattern of rejection isn’t due to the quality of the idea, but rather to the structure of the rejectors’ incentives. The better question is: Which company needs this invention most urgently and, at the same time, has the courage to take the risk? For Carlson, it wasn’t IBM, but a small photo paper manufacturer looking for a successor product. The same principle applies to patent holders in small and medium-sized businesses: The most valuable licensee isn’t always the biggest player in the market, but the one who needs the invention the most.

Sources: University of Rochester · Wikipedia: Chester Carlson · Druckerchannel: 80 Years of Xerography · Copyhouse: History of Xerography · History of Information

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Case 44 – Bell Labs and the Transistor: When Disclosure Is Wiser Than Blocking (Historical Lesson · Open Licensing)

The background: In 1947, William Shockley, John Bardeen, and Walter Brattain invented the transistor at Bell Laboratories. The invention was groundbreaking: The transistor replaced the vacuum tube as a switching element in electronics and became the foundation of the digital world. Bell Labs, AT&T’s research laboratory, held the patents on the new component. At that time, AT&T was the most powerful telecommunications company in the U.S.—and was under scrutiny by the antitrust authorities for monopolistic practices.

The result: AT&T licensed the transistor to all interested parties for a one-time fee of $25,000. More than 40 companies accepted the license, including Texas Instruments, Sony, and General Electric. The Consent Decree signed in 1956 made 7,820 Bell patents available royalty-free. The result: Silicon Valley was born. Researchers estimate that the subsequent innovations triggered by this alone are worth up to $5.7 billion in today’s prices—and that’s the low end of the estimate.

Why AT&T Deliberately Kept the License Fee Low

AT&T had several reasons not to block the transistor. First, the company was already the subject of an antitrust lawsuit filed by the Department of Justice in 1949. Any aggressive patent policy regarding the transistor would have weakened its negotiating position. Second, AT&T did not fully understand what the commercial landscape of semiconductor technology would look like. In its core competency of telecommunications, it had no reason to fear competition that might arise from broad transistor licensing. Third, AT&T recognized that a thriving transistor industry would also benefit Bell itself: better components, more innovation, and more suppliers.

The strategic decision to license openly was therefore not a gesture of altruism, but a rational calculation: The risk of an antitrust lawsuit outweighed the benefits of aggressive patent defense. At the same time, by taking a generous approach to transistor patents, AT&T was able to build political capital that helped in the Consent Decree negotiations.

The 1952 Transistor Symposium

In April 1952, Bell Labs invited over 100 representatives from 40 companies to a nine-day transistor technology symposium. Participants included major corporations such as GE and RCA, as well as companies that were still small at the time, such as Texas Instruments and Sony. Each participant had previously paid the $25,000 license fee. The symposium covered not only the fundamentals of the transistor but also manufacturing techniques. Bell thus deliberately shared its knowledge with the industry—a decision that had far-reaching consequences for the history of the industry.

Sony used this license to build its first transistor radio, which was released in 1955. Texas Instruments developed the integrated circuit. Gordon Teal left Bell Labs and founded the semiconductor program at Texas Instruments. William Shockley left Bell Labs, founded Shockley Semiconductor in Palo Alto, and thereby laid the foundation for Silicon Valley. Without open licensing, many of these companies would never have been able to get off the ground.

The 1956 Consent Decree and Its Consequences

The 1956 consent decree reached with the Department of Justice marked the formal end of the transistor blockade strategy. AT&T agreed to make all 7,820 existing Bell patents available royalty-free and to license all future patents for reasonable royalties. At the same time, AT&T was prohibited from operating in industries outside of telecommunications. That sounds like a defeat for AT&T. In practice, it was an agreement that secured AT&T’s core monopoly in the telephone sector for another 26 years—until its breakup in 1982.

Scientific studies show that the availability of patents under the Consent Decree increased subsequent innovation by 17 percent, as measured by citations in later patents. The effect was particularly strong among small and young companies. The availability of the Bell patents was the actual starting point for the American semiconductor industry.

What Became of Bell Labs Itself

To this day, Bell Labs remains one of the most productive research laboratories in history. Nobel Prizes in Physics, Chemistry, and Economics, as well as the invention of the laser, the solar cell, the optical fiber, and the Unix operating system, can all be traced back to Bell Labs. Its research tradition was based on a simple principle: basic research without immediate pressure to commercialize, but with the institutional backing of a multibillion-dollar corporation. Those who hold patents on foundational technologies often benefit more from strategic openness than from blocking them—especially when their own monopoly position is already threatened by antitrust law.

What can a company learn from this?

Patents are not an end in themselves. The decision of whether to aggressively defend a patent, license it at a low cost, or even disclose it depends on the overall strategic situation. AT&T licensed the transistor at a low cost because it feared antitrust law and because its core competence in the telephone sector was not threatened by a broad transistor industry. For companies in similar situations—strong market power, political pressure, far-reaching patents—a proactive licensing strategy may be better than a blockade. Those who open up their patents before they are forced to do so at least retain control over the terms.

Sources: IEEE-USA Bell Labs Transistor · Computer History Museum · CEPR Bell Labs Consent Decree · ProMarket Antitrust · Construction Physics Bell Labs

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Case 45 – Edison vs. Tesla: The War of Currents as the First Major Patent Battle in Industrial History (Historical Case Study · Patent Battle)

The background: In the mid-1880s, Thomas Edison began electrifying the United States with direct-current power grids. He held patents on carbon-filament light bulbs, direct-current technology, and grid infrastructure, and charged licensing fees for their use. Edison’s system worked in urban areas but was unsuitable for long distances. His competitor, George Westinghouse, relied on alternating current. Nikola Tesla had developed a practical alternating-current motor in 1888 and filed 22 patents for it. Westinghouse immediately purchased Tesla’s patents.

The result: The War of Currents ended with the complete victory of alternating current. The 1893 World’s Fair in Chicago was lit with Westinghouse alternating current, for $1 million less than Edison’s bid. In 1896, the Niagara Falls hydroelectric power plant began operating using AC technology. Even Edison’s own company, General Electric, switched to AC. To this day, AC remains the global standard for long-distance power transmission.

How Westinghouse Used Tesla’s Patents

In 1888, Westinghouse immediately recognized the strategic importance of Tesla’s patents. He purchased not only the licensing rights but also secured Tesla’s cooperation in building the alternating current power grids. Tesla’s 22 patents on the polyphase induction motor, transformers, and transmission technologies together formed a complete system that covered AC power from the generator to the motor. No single patent was decisive—the strategic strength lay in the comprehensiveness of the patent portfolio, which no competitor could replicate in the short term.

This remains relevant from a patent strategy perspective to this day. Westinghouse did not purchase a single invention, but rather a system. Anyone who holds a single patent on a key component is vulnerable—competitors can fill the gaps. Anyone who holds a system of interconnected patents that covers an entire technical process builds a barrier that is virtually impossible to circumvent.

Edison’s Counterstrategy: Fear and Lobbying

Edison did not respond to the threat posed by alternating current by improving his direct current system technically, but rather by launching a disinformation campaign. He had dogs and horses publicly electrocuted with alternating current to demonstrate its danger. He lobbied in several U.S. states for a legal limit on the power grid voltage of 300 volts—which would have effectively banned Tesla’s 1,000-volt alternating current. He supported the introduction of the AC-powered electric chair in New York to associate AC with death.

This strategy failed for one simple reason: it was not based on patents. Edison tried to slow down a technologically superior solution through political and propaganda tactics. That might work in the short term, but it cannot withstand long-term market dynamics. When Westinghouse and Tesla were able to light the 1893 World’s Fair in Chicago for a million dollars less than Edison, the market was decided. Consumers and clients chose price and performance—not fear.

What Really Happened to Tesla’s Patents

Tesla’s patents were the real strategic asset in the War of Currents. Westinghouse held them, but when the company ran into financial difficulties, Tesla offered to waive his royalties. Westinghouse survived. Tesla never received the financial compensation his patents deserved. He died in poverty in 1943. This is a bitter lesson about the difference between holding a valuable patent and actually deriving economic benefit from it: Anyone who sells their patents under pressure or waives royalty payments loses the economic value of their invention—even if their technology changes the world.

RCA and Farnsworth: A Parallel History

At the same time as the “War of Currents,” a similar dispute was unfolding in the field of television technology. In 1927, inventor Philo Farnsworth had developed and patented the first electronic television system. RCA, the media monopoly led by David Sarnoff, wanted to use the technology without paying licensing fees. RCA commissioned its own engineer, Vladimir Zworykin—who had already filed a patent for a picture tube in 1923—to replicate the technology. In 1935, the U.S. Patent Office ruled in Farnsworth’s favor: RCA was required to pay licensing fees. Farnsworth won the patent dispute—but lost the market because World War II delayed commercialization and RCA subsequently had far greater resources. He died in 1971, largely forgotten. The Farnsworth case shows that winning a patent lawsuit is no guarantee of economic success if the opponent has superior marketing resources.

What can a company learn from this?

The War of Currents teaches three things at once. First: Whoever has technological superiority and holds the right patents wins in the long run—even if the opponent seems more powerful. Tesla’s alternating current patents defeated Edison’s direct current monopoly because alternating current simply worked better. Second: Patents without a strategy for commercial enforcement are of no use to their inventor. Tesla won the technical battle but lost the economic war. Third: Opponents who try to slow down a technologically superior solution through political campaigns delay change at best—they cannot stop it. Anyone in this situation should channel their energy into their own further development, not into rearguard actions.

Sources: Wikipedia, ” The War of Currents ” · Scinexx, “The War of Currents ” · Ørsted, “Energy Transition ” · Leckel, “Patent for the Television ” · Creoven, “Westinghouse Tesla“

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Case 46 – Avanci: How a Patent Pool Freed the Automotive Industry from a Flood of Lawsuits (SEP Pool · Automotive)

The background: In the mid-2010s, cars were becoming increasingly connected. 4G chips enabled real-time navigation, remote diagnostics, and over-the-air updates. The problem: A connected car involves thousands of standard-essential patents, held by Qualcomm, Ericsson, Nokia, Huawei, InterDigital, and dozens of others. A car manufacturer that installs a 4G SIM card would, in theory, have to negotiate individually with each of these companies—across different jurisdictions, with no transparency regarding total costs. What followed: Nokia sued Daimler in Germany in 2019; the company lost the case and was on the verge of having to halt sales of its vehicles. Further lawsuits followed.

The result: Avanci, founded in 2016 as an independent licensing platform, now brings together more than 58 SEP holders under one roof. Automakers pay a one-time license fee per vehicle—$15 (4G), then $20, and $32 for 5G—and are thereby licensed for all covered mobile communications patents. Over 80 automotive brands and more than 130 million connected vehicles operate under this umbrella. Mercedes-Benz was the first 5G licensee.

Why Individual Licensing Didn’t Work for Automakers

For decades, telecommunications companies had invested in 2G, 3G, and 4G and established their technologies as standards in standards-setting organizations. In return, they held SEPs, which they were required to license under FRAND terms. In the smartphone industry, a well-established system had developed over more than twenty years: Apple, Samsung, and others pay a few dollars per device to Ericsson, Nokia, and Qualcomm. Automakers were not part of this system. When their vehicles suddenly began containing 4G chips, they became implementers of mobile communications standards—without any licensing infrastructure in place.

What makes the Daimler case unique is that Nokia did not sue Daimler as the manufacturer, but instead sought to license at the vehicle level—that is, 3 euros per car instead of a few cents per chip at the supplier level. This was a strategic decision with far-reaching consequences: The value of a car is many times that of a smartphone, making the potential licensing base significantly larger. Daimler lost its case in 2020 before the Munich Regional Court and was forced to settle. This led to a massive increase in pressure on the entire industry.

How Avanci Solved the Problem—Through Patent Strategy

Avanci created a simple structure: Instead of conducting 50 bilateral negotiations with 50 patent holders, an automaker makes a single payment per vehicle to a neutral administrator. The administrator distributes the revenue proportionally based on each patent’s contribution. The advantage for SEP holders: They receive guaranteed revenue without a flood of lawsuits and without litigation costs. The advantage for automakers: A single negotiation, planning certainty, and no risk of production interruptions.

From a patent strategy perspective, this is crucial: SEP holders do not give up their patents—they monetize them efficiently. Ericsson, for example, generated approximately one billion euros in IPR licensing revenue in 2023, while Nokia generated over 1.5 billion euros in annual revenue from licenses. A significant portion comes from the Avanci pool. The pool achieves what individual plaintiffs cannot: it establishes a market standard that no one can bypass without considerable effort.

Pricing Power as a Core Strategy

The trend in pool prices demonstrates the strategic strength of the model. In 2016, Avanci launched at $15 per 4G vehicle—a rate the industry considered moderate. In 2022, Avanci raised the price to $20. For 5G connectivity, the price was initially set at $29 (early-bird rate) in 2023, then at the standard rate of $32 per vehicle. Analysts estimate that 5G brings a vehicle manufacturer approximately $300 in added value—meaning the licensing costs are a fraction of the benefit. This calculation has been made deliberately transparent to minimize resistance to licensing.

What happens to manufacturers who refuse

Ford did not join the Avanci pool until after the Munich Regional Court ruled in 2022 that the company had infringed an Ericsson SEP. The pattern is consistent: Anyone who remains outside the pool will eventually become a defendant in patent infringement proceedings. The lawsuit poses little risk to SEP holders—they have made FRAND offers, fulfilled their licensing obligations, and can demand an injunction. Automakers, on the other hand, risk production stoppages. The pool is therefore not a voluntary option, but structurally the only reasonable alternative to litigation.

What can a company learn from this?

When a company enters a new technology—in this case, in-vehicle connectivity—it must understand the licensing landscape for that technology before the first product hits the market. For years, automakers installed 4G chips without holding a single mobility license. The result was a flood of lawsuits that could have been avoided. Companies that conduct a freedom-to-operate analysis before entering the market—and take SEP pools like Avanci into account—save significantly on litigation costs and mitigate the risk of business disruption. And for companies that hold SEPs: A pool is often more valuable than individual lawsuits because it provides stable, scalable revenue without the risk of litigation.

Sources: Avanci 4G Price Increase · Light Reading Avanci 5G · Lexology Avanci 5G Launch · JUVE Patent · Spokesperson for Nokia and Daimler

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Case 47 – MPEG-LA: How a Patent Pool Turned Codec Chaos into a Global Licensing Standard (SEP Pool · Video Coding)

The starting point: When the MPEG-2 standard was developed in the early 1990s, the patent issue was clear: Sony, Thomson, and Mitsubishi Electric alone held more than 600 of the essential patents, while dozens of other companies held individual rights. Anyone wishing to manufacture DVD players or digital televisions would have had to negotiate individually with each of these patent holders. Without a coordinated solution, MPEG-2 would have been practically impossible to license—and would never have established itself as a global standard.

The result: In 1996, the major MPEG-2 patent holders jointly founded MPEG LA as an independent pool administrator. More than 1,600 companies licensed the H.264/AVC pool. MPEG LA managed pools for MPEG-2, MPEG-4, H.264/AVC, HEVC, and other standards. In 2023, Via Licensing Corp. acquired MPEG LA and founded the Via Licensing Alliance. Today, H.264-capable chips are built into virtually every device in the world—and every manufacturer pays a transparent, predictable license fee.

The Fundamental Problem of SEP Fragmentation

Technical standards are developed by organizations such as ISO, ITU, or 3GPP, to which dozens or hundreds of companies contribute their patents. This is intentional: standards are meant to reflect the state of the art, which is spread across many inventors. The result, however, is fragmentation under patent law, which presents every implementer with a coordination problem. Negotiating individually is inefficient, expensive, and leads to legal uncertainty—you never know whether you have licensed all relevant patents.

MPEG LA solved this problem with a simple structure: A neutral administrator determines which patents are truly essential, bundles them into a pool, sets a uniform license fee, and distributes the revenue on a pro-rata basis. For manufacturers, this means: a single license, predictable costs, and complete legal certainty. For patent holders: guaranteed revenue without having to bear their own negotiation costs, often from markets they would never have been able to tap into on their own.

H.264 as a Turning Point: 1,600 Licensees

H.264/AVC, also known as MPEG-4 Part 10, gradually became the dominant video standard starting in 2003. Streaming platforms, smartphones, Blu-ray players, security cameras, video conferencing systems—everything ran on H.264. MPEG LA gathered over 1,000 patents from 29 companies in the AVC pool. Over 1,600 license agreements were signed. The licensing fee for encoders and decoders was $2 per device—from a manufacturer’s perspective, a negligible amount for a TV costing 400 euros; from the pool’s perspective, the basis for hundreds of millions of dollars in annual revenue.

That is the real strategic leverage in patent strategy: Individual patents on core components of a global standard are difficult for a single holder to monetize—too many holders, a licensing landscape that’s too complex, and transaction costs that are too high. When pooled, however, they become a reliable source of income. Panasonic held over 1,400 active patents in the H.264 pool, Dolby over 1,000, and LG Electronics over 870. Without the pool, these numbers would have led to a licensing bottleneck that would have been nearly impossible to manage.

HEVC and the Failure of the Fragmented Alternative Proposal

With HEVC (H.265), the successor to H.264, things turned out differently. Instead of a single pool, several emerged: MPEG LA, HEVC Advance, and Velos Media competed simultaneously for licensees. Patent holders were spread across all three. For manufacturers, this raised the familiar problem: Which pool actually licenses all the relevant patents? This uncertainty significantly slowed HEVC adoption. Google seized this as an opportunity to promote the royalty-free AV1 codec, developed by the Alliance for Open Media. The result: HEVC never gained as widespread acceptance as H.264—a direct consequence of the fragmentation of the pools.

Lessons Learned from the Comparison of H.264 and HEVC

H.264, with a single, unified pool, continues to dominate the market to this day. HEVC, with three competing pools, has ceded a significant market share to AV1, which does not charge licensing fees. This is no coincidence: Patent holders seeking maximum licensing revenue benefit from a clear, unified pool structure—even if that means ceding their own negotiating position to an administrator. Fragmentation only benefits those who believe they can get more on their own. Practice consistently shows that fragmentation slows the overall adoption of the standard and thus shrinks the licensing base.

What can a company learn from this?

Anyone who holds patents on components of a technical standard should actively engage in pool negotiations rather than relying on individual licensing. Individual negotiations are expensive, time-consuming, and often end in litigation. Pools offer predictable revenue, broader market penetration, and lower administrative costs. For implementers, the opposite is true: Those who check for SEP patent pools and license early when introducing a new technology avoid costly surprises. The HEVC story shows that coordination failures at the pool level can also be costly—and that a royalty-free competitor always gains market share when the licensing landscape becomes too complex.

Sources: Wikipedia, MPEG LA · Sisvel, “How Patent Pools Form” · NETINT, “Content Royalties” · Streaming Media, “Codec Licensing”

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Case 48 – Huawei After the U.S. Ban: How a Corporation Turned Its Patents Into a Lifeline (China’s Patent Power · 5G SEPs)

The situation: In May 2019, the U.S. government added Huawei to the Entity List. This meant: no more American chips, no access to TSMC’s manufacturing facilities for advanced processors, no Google Android, and no Qualcomm modems. Revenue from the consumer business plummeted by nearly 50 percent, to 243 billion yuan. Huawei was facing the most severe crisis in its history. At the same time, the company possessed a patent portfolio that had been systematically built up over the years: more than 140,000 patents filed worldwide, about 20 percent of which were incorporated into 5G standards.

The result: In 2022, for the first time, Huawei generated more patent licensing revenue than it paid in licensing fees. Licensing revenue totaled $560 million. That same year, Huawei signed more than 20 new licensing agreements, including deals with Mercedes-Benz, Audi, Porsche, and BMW. In 2023, a long-term cross-licensing agreement was signed with Ericsson. In 2024, Huawei rose to the top 5 in the U.S. patent rankings. The company rebounded with the Kirin 9000 chip, which was manufactured domestically, and achieved revenue of $118.8 billion in 2024—a 22.4 percent increase.

How Huawei Built Its Patent Portfolio

For years, Huawei has invested more than 20 percent of its revenue in research and development. In 2024, that amounted to $24.76 billion. For years, the company has been the largest or second-largest filer of PCT patents worldwide. In the 5G standard, Huawei has the highest or one of the highest declaration rates—analysts estimate that Huawei’s 5G SEPs account for 14 to 16 percent of all 5G standard-essential patents, more than Ericsson, Nokia, or Qualcomm hold individually.

This was not a defensive response to the 2019 U.S. ban, but rather a strategy that began as early as the mid-2000s. When Huawei was still primarily a Chinese network equipment provider, the company systematically built up patent portfolios related to the emerging 3G and 4G standards. This investment only fully paid off after the U.S. ban: When the product business collapsed, the patents remained a source of income.

From Defense to Offense: The Shift in 2022

Until 2019, Huawei was a net license payer: The company paid more in license fees to Western SEP holders than it received itself. This was typical for a manufacturer that had not yet negotiated all of its cross-licenses. After the U.S. ban, the calculus changed: Since Huawei had fewer incentives for a cautious licensing policy in the product market—fewer of its own devices, less dependence on cross-licensing reciprocity—the company began to actively monetize its portfolio.

The Verizon case illustrates this new aggressiveness. In 2019, in the midst of the U.S. ban crisis, Huawei demanded $1 billion in licensing fees from Verizon for network patents. U.S. Senator Marco Rubio proposed barring Huawei from U.S. patent courts. Huawei countered that this would be a “disaster for global innovation”—a statement made with considerable strategic calculation: Abolishing patent courts would also harm the global IP system from which Western companies benefit.

Automotive as a New Licensing Frontier

In 2022, Huawei signed licensing agreements with Mercedes-Benz, Audi, Porsche, and BMW. The automotive industry is still in the early stages of 5G connectivity licensing—much like it was with 4G in 2015. Huawei is positioning itself early on in this area, before the market consolidates. This is the same strategy Nokia and Ericsson have followed, but with a stronger portfolio in the 5G sector and a willingness to file lawsuits in Chinese courts as well, where Huawei enjoys a significant home-court advantage.

The Technological Comeback with Its Own Chip

Alongside its licensing push, Huawei is working toward technological independence. Through HiSilicon, Huawei operates its own semiconductor design division. The Kirin 9000C chip, manufactured by the Chinese chipmaker SMIC on the 7-nm node, makes 5G smartphones possible once again. In 2024, Huawei returned to select international markets with the Mate X6. The patent push and in-house technology development are proceeding in parallel—two pillars of a company that is working its way out of a structural dependence on U.S. technology.

What can a company learn from this?

Patents are resilience. With the U.S. ban in 2019, Huawei lost access to key markets and technologies—but its patent portfolio remained intact. Any company that invests in standards over decades and consistently patents its contributions builds a source of income that is largely independent of supply chain disruptions, export bans, and market losses. This applies to any company operating in technology-related industries: Patents follow your products—but patents survive your products.

Sources: CNBC “Huawei Patents as a Lifeline ” · Euronews “Huawei Licensing Revenue ” · Bloomberg “$560 Million” · FOSS Patents “Ericsson-Huawei ” · ITIF “Export Controls ” · Lumenci “Huawei Portfolio“

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Case 49 – CATL: Controlling the Global Battery Value Chain with 20,000 Patents (China’s Patent Power · Battery Technology)

The starting point: In 2011, Robin Zeng founded CATL (Contemporary Amperex Technology Co. Limited) in Ningde, Fujian. At that time, the Chinese battery market was dominated by Korean and Japanese manufacturers such as LG Energy Solution, Panasonic, and Samsung SDI. Western automakers sourced battery cells from Asia but had little understanding of the underlying patent landscape. CATL started out as a small newcomer with no global brand and no significant portfolio.

The result: Today, CATL holds over 20,000 active patents and, with approximately 37 percent, holds the largest market share in the global EV battery market. The company supplies Volkswagen, BMW, Tesla, Daimler, Stellantis, and virtually every other global automaker. Sodium-ion batteries, Shenxing fast-charging technology, and the Condensed Battery (semi-solid) are patented technology platforms that position CATL for the next generation of batteries. In sodium-ion patents alone, CATL leads the global rankings by a wide margin.

The LFP Decision as a Lever in Patent Strategy

An early and decisive move was CATL’s focus on lithium iron phosphate (LFP) batteries. For a long time, LFP chemistry was considered inferior to NMC (nickel-manganese-cobalt) batteries in terms of energy performance. However, LFP is significantly cheaper, more stable, and has a longer lifespan. CATL recognized early on that LFP would be the relevant chemistry for the mass market. The company invested heavily in process patents for LFP: better packing density, new cathode materials, and improved thermal management systems.

In 2021, Tesla changed its procurement strategy and ordered LFP cells from CATL for standard-range vehicles. This sent a global signal. Other OEMs followed suit. Anyone looking to source LFP in large quantities can hardly avoid CATL—not only because of its production capacity, but also because of the dense network of patents surrounding current LFP processes.

CATL as an Active Patent Plaintiff

CATL does not use its portfolio solely for defensive purposes. Since 2021, the company has filed multiple lawsuits against CALB (China Aviation Lithium Battery) for patent infringement—specifically regarding electrode technologies and casing designs. The lawsuits also name Tesla dealerships and vehicle manufacturers as purchasers of the allegedly infringing products. This is a classic downstream litigation strategy: Suing the end user puts pressure on the entire supply chain and forces manufacturers to purchase only from licensed suppliers.

The Chinese court system has proven to be favorable to patent holders. Damages awards have increased, while the duration of proceedings has decreased. CATL benefits from the same home-court advantage that Huawei enjoys with 5G SEPs.

Sodium Ions: The Next Frontier in Patents

CATL’s strategic lead in sodium-ion batteries (SIBs) is remarkable. In 2024 alone, CATL filed 3,284 sodium-ion patents, and in the first quarter of 2025, it filed another 1,503. BYD, the next-largest Chinese competitor, filed approximately 260 patents during the same period. CATL began commercial production of SIBs with an energy density of 160 Wh/kg in 2023. The strategic rationale behind this aggressive patent strategy is that sodium is an abundant element, not dependent on critical raw materials such as lithium or cobalt. Whoever holds the key positions in sodium-ion technology secures independence from the raw materials market and, at the same time, licensing advantages over every other SIB manufacturer.

Competition with BYD

BYD is CATL’s fiercest Chinese competitor—and at the same time a partner in the government-backed solid-state battery consortium. This coexistence of competition and cooperation is often difficult for Western companies to understand, but it is typical in the Chinese technology sector. Both companies have been involved in mutual patent disputes, yet they cooperate at the government level on strategic technologies such as solid-state batteries. This shows that in China, patent portfolios serve both as weapons of attack and as bargaining chips for government-coordinated alliances.

What can a company learn from this?

Those who establish a patent portfolio early on in a new technology sector—in this case, electric mobility and energy storage—create barriers to entry that will keep even well-capitalized competitors busy for years. CATL’s rise from a newcomer in 2011 to a global market leader with 20,000 patents in 13 years demonstrates how quickly technological leadership can be established through consistent patent work. Furthermore, those who identify the next generation of technology—in this case, sodium-ion—early on and systematically secure the patent landscape before competitors recognize its relevance gain a lead that cannot be overcome by capital alone.

Sources: IP Fray CATL Lawsuit 2025 · PatSnap CATL vs. BYD SIB · AlphaSense CATL · Electric Car News Solid-State Alliance · ESS News CALB vs. CATL

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Case 50 – BYD: How a Battery Manufacturer Became a Global Automotive Group – Through Vertical Integration and Patents (China’s Patent Power · Electric Vehicles)

The background: In 1995, Wang Chuanfu founded BYD (Build Your Dreams) in Shenzhen as a battery manufacturer. The company initially supplied nickel-cadmium and lithium-ion batteries for cell phones. In 2003, BYD purchased a bankrupt Chinese car brand for 270 million yuan and entered the automotive industry—at a time when the Chinese auto market was dominated by joint ventures with VW, GM, and Toyota. BYD had no expertise in car manufacturing, no brand, and no vehicle technology. What it did have was in-depth knowledge of battery materials and the willingness to systematically patent them.

The result: In 2023, BYD surpassed Volkswagen as the best-selling car brand in China. In the fourth quarter of 2023, BYD delivered more electric vehicles than Tesla. Today, the company is one of the world’s ten largest automakers and the only one that develops and manufactures battery cells, electric motors, power electronics, chips, and vehicles entirely in-house. The patented Blade Battery approach (blade cell format) became the de facto standard in the Chinese EV market starting in 2020.

Vertical Integration as a Patent Multiplier

BYD’s strategic core is full vertical integration: The company develops and manufactures battery cells, battery packs, electric motors, inverters, IGBT chips, vehicle control software, and the vehicles themselves. Each of these components is patented separately. The effect is not additive but multiplicative: whoever controls the interface between the battery and the motor can optimize the integration to such an extent that external suppliers cannot keep up—even if they manufacture individual components more cheaply. The patents on system integration are more valuable than the patents on individual components.

This is a fundamental difference from Western automakers, which purchase batteries from CATL or LG Energy Solution and chips from Infineon. They are users of third-party patents. BYD owns the entire supply chain. When component prices rise or supply chains break down, vertical integration provides protection—and the underlying patent protection ensures that competitors cannot simply copy this integration.

The Blade Battery Patent as a Market Disruptor

In 2020, BYD unveiled the Blade Battery. The concept: Instead of packing round or prismatic cells into a module and modules into a pack, flat, blade-like cells are inserted directly into the vehicle pack without a module layer. This saves weight, improves pack density by about 50 percent compared to traditional designs, and increases safety because the cell geometry makes thermal runaway significantly more difficult. The design and production processes have been extensively patented.

The Blade Battery became both a marketing tool and a patent-based barrier to entry. In 2023, Toyota licensed the Blade Battery concept from BYD for use in its own electric vehicles—a sign that even the world’s largest automaker relies on BYD’s patents. Mercedes-Benz, Ford, and other Western automakers have explored or finalized investments in BYD or partnerships for battery technology.

The Price War as a Patent Strategy

BYD is known for aggressive pricing. This can only be justified by complete cost control throughout the value chain. A Western competitor that buys battery cells, sources motors, and licenses software cannot compete if BYD retains all margins internally. Patents on vertical integration protect this model: Anyone seeking to imitate it would not only have to enter every stage of the value chain but also circumvent thousands of patents at each stage.

Sodium Ions and the Next Technological Step

BYD is also working on sodium-ion batteries, but is pursuing a different strategy than CATL. While CATL relies on broad patent coverage (over 4,800 sodium-ion patents), BYD focuses on manufacturing optimization and recycling processes: BYD holds patents on the conversion of end-of-life LFP cells into sodium-ion cathode materials. This is a circular economy-based patent strategy: whoever controls the recycling process chain reduces raw material costs while simultaneously creating a barrier for competitors who do not have used batteries in their system.

What can a company learn from this?

Vertical integration is a sustainable competitive advantage only if it is protected by patents. BYD demonstrates that every stage of a company’s value chain—materials, cells, battery packs, motors, chips, software, and vehicle integration—should be patented individually. The sum of intellectual property rights across all levels is harder to challenge than any single patent. For small and medium-sized enterprises (SMEs) operating within a value chain and developing parts of it themselves: Systematically assess which integration steps are patentable. Often, the value lies not in the individual component, but in the way components interact with one another.

Sources: Wikipedia BYD · PatSnap BYD Sodium-Ion · GIGA Hamburg Electric Mobility China · Electric Car News BYD Alliance · PatSnap SIB 2026

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What These 50 Cases Mean for Your Business

Patents are assets, not expense items.Whether it’s IBM with $27 billion in licensing revenue, Nortel with $4.5 billion in sales proceeds, Viessmann with a €12 billion exit, or Qualcomm with its entire business model: In each of these cases, the patent portfolio was actively managed. The companies that treated their patent portfolios as passive legal assets lost out.

The executive makes the decision, not the patent department.Gerstner at IBM, Jacobs at Qualcomm, Land at Polaroid, Leibinger at Trumpf, Chen at BlackBerry, Lundmark at Nokia, Page at Google, Şahin at BioNTech—in every case, senior management made the fundamental strategic decision. The IP department carried out the implementation. Any CEO who delegates IP as a purely legal matter is giving away strategic leverage.

Patents take time to grow.Google had to pay $12.5 billion for Motorola because the company hadn’t started building its own portfolio early enough. By the time the attacks came, it was too late to catch up organically. Patent portfolios are built over ten to fifteen years, not ten to fifteen months. Those who forgo patents during the growth stage will end up paying a premium later on—either to plaintiffs or to patent sellers.

Timing trumps substance.Kodak lost the Polaroid lawsuit because the FTO analysis was conducted too late or too superficially. Xerox lost the GUI case because the patents were filed too late. Moderna lost the mRNA patent in Europe because the prior art was not sufficiently taken into account. Anyone who waits too long or conducts too superficial an examination in the patent process will lose—regardless of how good the technology is.

Patents protect business models, not just products.Gillette’s razor-and-blade model, Tesla’s open ecosystem, Philips’ EnabLED licensing program, Stihl’s chainsaw platform, Kärcher’s hot-water principle—successful patent strategies start with the business model and work backward to the invention, not the other way around. The question is not just what we protect, but why we protect it.

Enforcement is part of the strategy.Dyson vs. Hoover, Polaroid vs. Kodak, Apple vs. Samsung, BioNTech vs. Moderna: Without a credible willingness to enforce patents in court if necessary or to actively defend against attacks, even the strongest intellectual property rights are worthless. Competitors know whether a patent holder means business.

Medium-sized companies have everything it takes.In these cases, nothing is reserved exclusively for large corporations.Trumpf, Stihl, Sennheiser, Herrenknecht, Viessmann, Fischerwerke, Kärcher, Zeiss, Festo, Krones, Miele, Wago, Heraeus, Schaeffler, Knorr-Bremse, and Rohde & Schwarz prove that German family-owned and medium-sized companies can become global market leaders through consistent patent work. Companies that are leaders in niche markets often have stronger intellectual property positions than large corporations—because their technology is more specialized and harder to circumvent. What they regularly lack is the strategic management of this position.

History repeats itself in patent disputes.Edison, Carlson, Bell Labs, Farnsworth, and Tesla demonstrate that the basic patterns of patent strategy disputes have remained the same for 150 years: The technologically superior solution prevails in the long run if it is protected by patents. Anyone who gives away their patent to the wrong person or relinquishes it under pressure loses the economic returns from their invention. And anyone who believes they can permanently block a superior technology through political campaigns or obstructionist strategies has misunderstood market dynamics. Edison tried to use fear campaigns against alternating current and lost. RCA tried a replication strategy against Farnsworth’s television patent and still had to pay. The lessons from these historical cases are just as relevant for today’s companies as they were back then.

SEP pools are not a weakness, but rather infrastructure.Avanci and MPEG-LA demonstrate that patent pools provide SEP holders with stable, scalable revenue without litigation costs—and offer implementers legal certainty at a transparent price. Anyone who holds SEPs should enter into pool negotiations early on. Anyone integrating a new technology into their product should check which pools exist and whether a license is required before entering the market. The Daimler case shows what happens when this check is neglected: the risk of a sales ban and costly renegotiations.

Patents outlast product markets.Nokia lost its cell phone market to Apple and Google—but its patent portfolio, built on 50 billion euros in R&D, remained. Huawei lost access to Western markets due to the U.S. ban—but its 140,000 patents remained. During the crisis, both companies transformed their portfolios into sources of income that today generate billions. Those who invest and file for patents today are building up a hidden reserve that will continue to pay off even if the product becomes obsolete, the market collapses, or geopolitical restrictions block sales.

China’s dominance in patents is no longer a future scenario.CATL holds over 20,000 patents, leads global sodium-ion rankings with thousands of applications annually, and actively sues competitors. BYD protects its vertical integration at every stage of the value chain through patents and licenses its Blade Battery to Toyota. Huawei has risen to the top 5 in global patent rankings. Anyone working in electric mobility, batteries, 5G, or AI must be familiar with the patent landscape of Chinese competitors—and extend their FTO analysis to include these portfolios.

Proactively filing for patents is orders of magnitude cheaper than reactively buyingthem.Google paid $12.5 billion for Motorola Mobility after neglecting patents for ten years. Each patent cost around $265,000 in this retroactive acquisition—compared to just a few thousand euros for a proactive patent application, representing a leverage ratio of 50 to 100. Any company scaling up in a patent-intensive market should consider portfolio development from the very beginning. Patent portfolios acquired reactively are not only more expensive; they are also often less well-suited to a company’s own business model because they were developed based on a different strategic logic.

Patent cliffs require years of preparation.AbbVie began building its patent thicket of 247 applications ten years before Humira’s core patent expired. Merck has been preparing since 2022 for the Keytruda cliff in 2028, with a new subcutaneous formulation, combination therapies, and pipeline acquisitions. Any company with a key revenue driver whose patent protection is set to expire in five to ten years should start developing a succession strategy today. The tools are well-known—reformulation, combination therapies, patent thickets, product hops, and acquisitions—but they take time to take effect.

Patents do not protect against liability risks.Bayer’s Roundup disaster shows that a strong patent portfolio and a solid market position can be devalued within a few years by product liability claims. Particularly in M&A transactions in the chemical, pharmaceutical, medical technology, or agricultural technology sectors, the assessment of liability risks must be at least as thorough as the assessment of the intellectual property rights themselves. Anyone who acquires a patent holder also takes on that holder’s history.

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What a Strategic Patent Analysis Looks Like for Your Company

I am a patent attorney and partner at Michalski Hüttermann & Partner. I regularly work with our clients on precisely these questions: Which patents are strategically valuable? Which ones can be licensed? Where are the FTO risks? How do we build a portfolio that supports a business model?

If you’re considering a strategic IP analysis for your company, let’s talk about it. An initial consultation won’t cost you anything—just thirty minutes of your time.

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All cases are based on publicly available sources. The information presented here has been significantly condensed and is intended to provide strategic context; it is not a substitute for individual legal advice. For specific questions regarding your company, please consult a patent attorney.

About the author

Dr. Rolf Claessen has been a patent attorney for over 15 years. You can find more information about Rolf Claessen on this website, in Wikipedia, on LinkedIn or many other websites. Many articles by, with and about Rolf Claessen can be found in renowned media such as ZEIT. Rolf Claessen is also known to some TV viewers as a member of the jury in the TV show "Wie genial ist das denn!" on Sat.1. You can also find reviews on Google and Linkedin.

As a patent attorney, he helps clients to file and enforce patents, trademarks and designs. He helps with infringement proceedings, e.g. recovering trademark damages.

I am an equity partner of Michalski - Hüttermann & Partner and I am also responsible for the content of this website.All patent attorney advice is provided via the law firm. This is not legal advice. I am not liable for correctness and completeness of this content. For legal advice, please contact me.

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50 Patent Strategies That Have Saved, Transformed, or Propelled Companies to the Top

Table of Contents

Case 01 – Lou Gerstner at IBM: Licensing Revenue as a Lifeline for a Struggling Corporation (Turnaround · Technology)

Who and what

The Strategy

Why That Worked Strategically

What we take away from this

What can a company learn from this?

Case 02 – IBM After Gerstner: How a Patent Portfolio Generated $27 Billion (Monetization · Technology)

The Strategy in Detail

The Three Levels of the System

Why It Worked

The Downside

What can a company learn from this?

Case 03 – Irwin Jacobs at Qualcomm: A Bet on Technology That Became a Licensing Empire (Business Model · Telecommunications)

The Double Bet

Why Standardization Efforts Were the Real Lever

Per-Device Royalties as a Scaling Lever

R&D as a Cost Center of the Strategy

What can a company learn from this?

Case 04 – The Rockstar Consortium: How Six Competitors Jointly Outbid Google (Defense · Consortium)

The Logic of the Coalition

Why the price was so much higher than market value

The specific strategic impact

Google’s Double Defeat

What can a company learn from this?

Case 05 – Antonio Perez at Kodak: How a Patent Portfolio Helped the Company Weather Bankruptcy (Restructuring · Imaging)

The Deal in Detail

What Kodak Achieved with This

What Kodak Failed to Achieve With This

What can a company learn from this?

Case 06 – James Dyson vs. Hoover: The Lone Warrior Who Defeated a Corporate Giant with the Power of Patents (Enforcement · Household Appliances)

The Strategic Importance

The Foundation of the Patent

The Post-Expiry Injunction

What can a company learn from this?

Case 07 – Elon Musk at Tesla: Opening Up Patents to Build the Market (Ecosystem · Automotive)

The Decision

What Was Really Behind the Opening

Why Wall Street Misunderstood the Strategy

What Tesla Is Actually Doing Next

What can a company learn from this?

Case 08 – Toyota and the Fuel Cell: 5,680 Patents to Avoid the Chicken-and-Egg Dilemma (Ecosystem · Automotive)

Exactly what Toyota disclosed—and what it didn’t

The Logic of Approval: A Systematic Solution to the Chicken-and-Egg Problem

The Similarity to Tesla—and the Key Difference

The Difference from Ford

What Actually Happened After 2015

What can a company learn from this?

Case 09 – Edwin Land at Polaroid: $925 Million in Damages from Kodak (Enforcement · Photography)

The Patent Fortress: Why Kodak Couldn’t Get Around It

Land’s personal focus as a driver of the process

The Length of the Proceedings as a Strategy

The Economics of 925 Million Dollars

The bitter irony

What can a company learn from this?

Case 10 – Steve Jobs and Apple: Design Patents as a Weapon Against Samsung (Enforcement · Consumer Electronics)

The Design Patent Strategy

Why Design Patents Were the Superior Weapon

Jobs’ Basic Approach

The Expanded Goal

The sober assessment

What can a company learn from this?

Case 11 – King Gillette: Patents as the Foundation of an Entire Business Model (Business Model · Consumer Goods)

The Patent as the Foundation of a Business Model

What Happened When the Patents Expired

The Long-Term Strategy

What can a company learn from this?

Case 12 – John Chen at BlackBerry: From Smartphone Manufacturer to Licensor (Transformation · Mobile Communications)

The Repositioning

Active enforcement

The first attempt to sell it failed

A Sober Look at the Numbers

What can a company learn from this?

Case 13 – Pekka Lundmark at Nokia: How a Failing Smartphone Manufacturer Became a Licensing Giant (Transformation · Telecommunications)

Licensing Pricing Policy

The 2021–2024 Renewal Cycle

Expansion into New Fields

The Renaming as a Signal