Mealey's (December 9, 2020, 2:16 PM EST) -- WASHINGTON, D.C. — The director of the U.S. Patent and Trademark Office (PTO) intervened before the Federal Circuit U.S. Court of Appeals on Nov. 13 in a dispute over a patented wireless recording system the Patent Trial and Appeal Board deemed anticipated and obvious, defending the board’s findings (Zaxcom Inc. v. Lectrosonics Inc., Nos. 2020-1350, -1405, Fed. Cir.)....