Apple, Google ask appeals court for another chance to nix patent rule

(Reuters) – A U.S. appeals court on Thursday heard a bid by Apple Inc, Google Inc, Intel Corp and others to revive their challenge to a U.S. Patent and Trademark Office policy that made it harder to contest the validity of patents issued by the agency.

A three-judge panel of the U.S. Court of Appeals for the Federal Circuit had pointed questions for both…