[Coinbase Files Patent Invalidity Lawsuit Against Dynapass] Foresight News reports that Coinbase has filed a lawsuit in the U.S. District Court for the Central District of California, seeking a declaratory judgment against Dynapass Inc. and Dynapass IP Holdings LLC. The lawsuit claims that Coinbase has not infringed on U.S. Patent No. 6,993,658 and requests the court to declare the patent invalid. The legal filing was submitted by Coinbase's attorneys and includes a demand for a jury trial. Coinbase Chief Legal Officer Paul Grewal stated that the company will take legal action to combat such 'patent trolling' behavior.