Sirius XM Defeats Fraunhofer Patent Suit as Delay Dooms Claims

Sirius XM Radio Inc. beat a remanded patent suit over its high-band satellite radio system after a federal judge ruled a German research group’s years-long silence sank its infringement claims.

Sirius relied on Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.’s more than five-year silence in deciding to adopt the accused system, Judge Joseph F. Bataillon said in an opinion issued Tuesday in the US District Court for the District of Delaware. The finding resolved the sole issue left for trial after the US Court of Appeals for the Federal Circuit upheld the lower court’s ruling on other elements of equitable ...