HTC Corp. and its lawyers at Perkins Coie won a big ruling Monday in a transatlantic fight with the German company IPCom Gmbh, which has been called Europe’s first bona fide “patent troll.”

In a one-sentence order, the U.S. Court of Appeals for the Federal Circuit affirmed a prior ruling that HTC doesn’t infringe two IPCom patents relating to wireless technology. The ruling resolves most of a long-running U.S. patent case between HTC and IPCom.