Mealey's (September 15, 2017, 7:06 AM EDT) -- WASHINGTON, D.C. — In a pair of Sept. 5 respondent briefs, the interim director of the U.S. Patent and Trademark Office (PTO) and a patent holder tell the U.S. Supreme Court that when the Trademark Trial and Appeal Board (TTAB) institutes inter partes review (IPR) of the validity of patent claims, it is not required to review or rule on every patent claim asserted in a party’s petition for review (SAS Institute Inc. v. Joseph Matal, et al., No. 16-969, U.S. Sup.)....