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Court Dismisses Bancor-Linked CPAMM Patent Suit Against Uniswap

The court ruled the patent allegations failed to meet infringement standards due to Uniswap’s open-source code.

Overview

  • A U.S. district court in New York dismissed the patent claims brought by Bprotocol Foundation and LocalCoin Ltd., entities tied to Bancor.
  • The plaintiffs alleged Uniswap had used the constant product automated market maker formula (x*y=k) since 2018 in violation of a 2017 patent.
  • The court found the plaintiffs did not meet the legal threshold for infringement, with Uniswap’s publicly accessible code weighing against the claims.
  • Industry groups including the DeFi Education Fund and the Solana Institute supported Uniswap’s position, cautioning against patents on basic DeFi mechanisms.
  • Uniswap founder Hayden Adams noted the decision on Feb. 11, and no appeal has been announced, removing immediate patent risk at the district-court stage.