Mealey's (November 23, 2022, 10:37 AM EST) -- WASHINGTON, D.C. — The Federal Circuit U.S. Court of Appeals on Nov. 22 turned away a patent owner’s request for a writ of mandamus directing the U.S. Patent and Trademark Office (PTO) to terminate an ex parte reexamination that relies on two prior art references already considered by the Patent Trial and Appeal Board....