Mealey's (February 23, 2023, 12:21 PM EST) -- WASHINGTON, D.C. — In a Feb. 22 respondent brief filed with the Federal Circuit U.S. Court of Appeals, U.S. Patent and Trademark Office Director Katherine K. Vidal said a recent petition for writ of mandamus by a sanctioned petitioner for inter partes review (IPR) should be denied because much of the relief requested has been granted since the mandamus bid was launched....