In a comprehensive memorandum opinion and order dated Tuesday, February 10, Judge John G. Koeltl of the US District Court for the Southern District of New York granted the defendant’s motion to dismiss the complaint. The lawsuit was originally filed by Bprotocol Foundation and LocalCoin Ltd. against Universal Navigation Inc. and the Uniswap Foundation. These Bancor-affiliated entities had sought to assert intellectual property claims against Uniswap, a leading decentralized exchange (DEX), alleging infringement of patents central to automated market maker (AMM) technology.

The court’s decision hinged on its finding that the patents in question were directed to the abstract idea of calculating cryptocurrency exchange rates, thereby failing to satisfy the rigorous two-step test for patent eligibility established by the US Supreme Court in cases such as Alice Corp. v. CLS Bank Int’l and Mayo Collaborative Services v. Prometheus Laboratories, Inc. This test first asks whether the claims are directed to a patent-ineligible concept, such as an abstract idea. If so, the second step requires determining whether the claim recites an "inventive concept" sufficient to transform the nature of the claim into a patent-eligible application. Judge Koeltl concluded that the patents failed both steps.

While a significant win for Uniswap, the dismissal is not yet final. The case was dismissed without prejudice, a crucial legal distinction that grants the plaintiffs a window of 21 days to file an amended complaint. Should Bprotocol Foundation and LocalCoin Ltd. fail to submit a revised complaint within this timeframe, the dismissal will automatically convert to one with prejudice, effectively ending their ability to pursue these specific claims against Uniswap. The immediate reaction from Uniswap founder Hayden Adams underscored the significance of the ruling, as he succinctly wrote on X shortly after the decision, “A lawyer just told me we won.”

The lawsuit, as previously reported, saw Bancor-affiliated entities alleging that Uniswap infringed patents related to a “constant product automated market maker” system, which forms the fundamental technological backbone of many decentralized exchanges. This dispute cut to the core of how decentralized exchanges operate, specifically targeting Uniswap’s protocol for its alleged unlawful use of patented technology concerning automated token pricing and liquidity pools. The central claim was that Uniswap’s innovative approach to on-chain liquidity and trading mechanisms leveraged intellectual property belonging to Bancor.

Judge Koeltl’s opinion meticulously explained why the asserted patents fell short of eligibility. He stated unequivocally that the patents were directed to “the abstract idea of calculating currency exchange rates to perform transactions.” This conclusion is rooted in the long-standing legal principle that abstract ideas, such as mathematical formulas, fundamental economic practices, or general concepts, are not patentable in themselves. The judge emphasized that currency exchange is a “fundamental economic practice” and that the process of calculating pricing information, even in a novel context, remains abstract under established Federal Circuit precedent.

A key aspect of the court’s reasoning involved its rejection of the plaintiffs’ arguments that implementing the pricing formula on blockchain infrastructure rendered the claims patentable. Judge Koeltl determined that the patents merely employed existing blockchain and smart contract technology “in predictable ways to address an economic problem.” He further clarified that simply limiting an abstract idea to a particular technological environment, such as a blockchain, does not automatically transform it into a patent-eligible invention. The court also found a distinct absence of an “inventive concept” that would be sufficient to transform the abstract idea into a concrete, patent-eligible application, thereby failing the second prong of the Alice test. This suggests that the patents did not describe a sufficiently innovative or non-obvious method of applying the abstract idea that would warrant patent protection.

Beyond the fundamental issue of patent eligibility, the court identified additional shortcomings in the plaintiffs’ complaint, finding that it did not plausibly allege direct infringement. According to the memorandum, Bprotocol Foundation and LocalCoin Ltd. failed to adequately identify how Uniswap’s publicly available code specifically incorporated the required reserve ratio constant, a critical element specified in the patents. This lack of specificity meant that the complaint did not meet the pleading standards necessary to demonstrate that Uniswap directly infringed the patents.

Furthermore, the judge also dismissed claims of induced and willful infringement. For these claims to proceed, the plaintiffs would have needed to plausibly allege that the defendants (Uniswap and its entities) had prior knowledge of the patents before the lawsuit was filed and intentionally encouraged or participated in infringing activities. The complaint, however, did not provide sufficient evidence to support such claims, leading to their dismissal. The cumulative effect of these multiple grounds for dismissal—patent ineligibility, failure to plead direct infringement with specificity, and insufficient allegations for induced/willful infringement—significantly strengthens Uniswap’s position.

The dismissal without prejudice leaves the door ajar for Bprotocol Foundation and LocalCoin Ltd. to potentially refile with a revised complaint. However, overcoming the court’s robust findings on patent eligibility will be a formidable challenge. They would need to significantly reframe their claims to demonstrate that their patents describe a specific, concrete application of a technology rather than an abstract idea, and that this application constitutes an inventive step beyond merely implementing a known concept on a blockchain. This could involve focusing on highly specific technical implementations or novel structural elements that are not merely generic blockchain components.

This ruling carries broader implications for the rapidly evolving DeFi and blockchain industries. It underscores the challenges of securing and enforcing software patents, particularly those related to fundamental economic processes or algorithms, in the context of distributed ledger technology. The court’s stance that merely applying an abstract idea to blockchain technology does not automatically confer patent eligibility is a critical precedent. It suggests that future patent applications in the crypto space will need to demonstrate true technological innovation in how a process is executed, rather than simply claiming a known process within a new technological environment.

For the open-source ethos prevalent in much of the DeFi community, this decision could be seen as a reaffirmation. Many core DeFi protocols are built on open-source principles, where code is publicly accessible and innovations are often built upon prior work. Broad, abstract patents could stifle this collaborative development. By dismissing claims rooted in abstract ideas, the court has implicitly supported an environment where fundamental economic mechanisms, even when implemented with cutting-edge technology, remain accessible for innovation and competition unless a truly inventive, non-abstract application is demonstrated.

As the 21-day period for filing an amended complaint begins, the crypto world will watch closely to see if Bancor-affiliated entities attempt to revise their claims. Should they choose not to, or if an amended complaint is also dismissed, Uniswap will have secured a definitive victory, cementing its position as a leading innovator in the DeFi space without the shadow of this particular patent dispute. This case serves as a stark reminder that while blockchain and DeFi are revolutionary, intellectual property law, particularly concerning software patents, remains a complex and often challenging landscape for even the most innovative projects. Cointelegraph reached out to representatives of Bprotocol Foundation and Uniswap for comment but had not received a response by publication.