HTC saw a further setback in its attempts to survive patent conflicts on Monday after a US Court of Appeals in Washington ruled (PDF) that an earlier decision invalidating an IPCom patent in a lawsuit couldn't be upheld. The judge who had overseen the original case, where HTC had sued IPCom to negate its patent, would have to listen to arguments from IPCom as to why the patent was still valid. It would revive a lawsuit HTC had initiated in 2008 and thought it had resolved with its victory in 2010.
