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Uniswap wins CPAMM patent lawsuit against Bancor

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Uniswap wins CPAMM patent lawsuit against Bancor

Uniswap has won a patent infringement lawsuit filed by organizations connected to Bancor, marking a major legal victory for the decentralized exchange and the wider decentralized finance sector.

Summary

  • Uniswap won a patent infringement lawsuit filed by Bancor-linked entities in a U.S. federal court.
  • The case focused on the constant product market maker formula used in decentralized trading.
  • The ruling supports open-source development and limits patent claims over core DeFi tools.

On Feb. 11, Uniswap founder Hayden Adams said on X that his legal team had informed him of the court’s decision in Uniswap’s favor. The case had challenged the technology that powers automated token trading on the platform.

Many people in the crypto world paid close attention to the lawsuit because it brought up a bigger issue. It questioned whether simple trading formulas used in DeFi can actually be protected by patents.

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Lawsuit focused on AMM technology

The legal fight started in May 2025. Bprotocol Foundation and LocalCoin Ltd., both connected to Bancor, filed a lawsuit in a federal court in New York. They claimed that Uniswap Labs and the Uniswap Foundation used a trading method that was covered by a patent granted back in 2017.

The patent covered the constant product automated market maker model, commonly known for the formula x*y=k. This system is used to price tokens in liquidity pools and has become a foundation of many decentralized exchanges.

Bancor argued that Uniswap (UNI) had relied on this patented method since launching in 2018 without permission. The plaintiffs sought financial damages for several years of alleged unauthorized use.

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Uniswap strongly rejected the claims from the start. The company said its code had always been open-source and publicly available. It also argued that the patent attempted to claim ownership over basic mathematical principles applied to blockchain systems.

Several industry groups supported Uniswap’s position. Organizations such as the DeFi Education Fund and the Solana Institute filed statements backing the exchange and warning against using patents to restrict open innovation.

Impact on DeFi and open-source development

According to people familiar with the case, the court found that the allegations did not meet the legal standard required for patent infringement, especially given the open nature of Uniswap’s software.

Legal experts say the ruling sends a strong message to the market. Core financial mechanisms that rely on simple formulas may be difficult to protect through patents when they are openly shared and widely adopted.

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Many developers see this outcome as a strong moment for open finance. It sends a message that the basic tools behind DeFi cannot easily be restricted or put behind paywalls through patents.

Uniswap users and its partners can also breathe a little easier. The uncertainty surrounding the case had raised concerns about possible setbacks. If the court had ruled differently, it might have slowed down new features and partnerships across the wider ecosystem.

So far, there has been no word of an appeal. For now, the matter seems to be settled at the district court stage.

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Crypto World

Crypto Speculation Era Ending As Institutions Enter Market

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Crypto Speculation Era Ending As Institutions Enter Market

The days of outsized gains in crypto may be coming to an end as more risk-averse institutional players are entering the space, replacing retail investors who chase rapid gains, according to Galaxy CEO Mike Novogratz.

Novogratz reportedly said at the CNBC Digital Finance Forum on Tuesday in New York that it reflects the maturing industry. 

“Retail people don’t get into crypto because they want to make 11% annualized,” he said. “They get in because they want to make 30 to one, eight to one, 10 to one,” he said. 

Novogratz referenced FTX’s collapse in 2022, which resulted in a bear market that saw Bitcoin (BTC) prices fall 78% from $69,000 to $15,700 in November that year, stating that there was a “breakdown in trust” then. 

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Novogratz also acknowledged that the Oct. 10 leverage flush, which he called a significant event that “wiped out a lot of retail and market makers,” and increased selling pressure — though there wasn’t any major catalyst.

“This time, there’s no smoking gun,” he said. “You look around like, what happened?”

“Crypto is all about narratives, it’s about stories,” he said. “Those stories take a while to build, and you’re pulling people in … so when you wipe out a lot of those people, Humpty Dumpty doesn’t get put back together right away.”

Tokenized real-world assets will drive markets

Novogratz said he expects the industry to shift from high-return speculation to more practical applications, such as tokenized real-world assets that offer steadier returns.

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However, some traders will always speculate, said Novogratz, but it’s going to be “transposed or replaced by us using these same rails, these crypto rails, to bring banking [and] financial services to the whole world. And so, it’s going to be real-world assets with much lower returns.”

Related: Chainlink co-founder’s 2 reasons this bear market feels different

Chainlink co-founder Sergey Nazarov made a similar argument on Tuesday, stating that tokenized RWAs will “surpass cryptocurrency in the total value in our industry, and what our industry is about will fundamentally change.”

Long-term Bitcoin believers will be fine

David Marcus, the co-founder and CEO of Lightspark and a former PayPal executive, told Bloomberg on Tuesday that there has also been a shift in who is holding Bitcoin

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“It’s just a change of who’s holding Bitcoin, and you’re moving from people that had long-term belief and were holding Bitcoin directly to just access to Bitcoin being wired off to our financial system and markets.”

He added that the change in holders and the Oct. 10 leverage flush have changed the dynamic, but those who have long believed that Bitcoin is a “hedge to everything else that’s happening in the markets” will be fine.

David Marcus speaks on Bitcoin holder changes. Source: Bloomberg

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