Foresight News reports that Coinbase has filed a lawsuit in the U.S. District Court for the Central District of California against Dynapass Inc. and Dynapass IP Holdings LLC seeking a declaratory judgment, asserting that it has not infringed U.S. Patent No. 6,993,658 and requesting a ruling that the patent is invalid. The lawsuit was submitted by Coinbase's legal representatives and includes a request for a jury trial. Coinbase's Chief Legal Officer Paul Grewal stated that the company will combat such "patent trolling" through legal action.