Mealey's (October 29, 2015, 10:05 AM EDT) -- WASHINGTON, D.C. — Munchkin Inc. incorrectly argues that a patent owner failed to challenge the validity of a statute or regulation in a decision by the Patent Trial and Appeal Board (PTAB) that a design for a baby drinking cup was unpatentable, the patent owner argues in an Oct. 5 reply brief in the U.S. Supreme Court (Luv N’Care, Ltd. v. Munchkin, Inc., No. 15-242, U.S. Sup.)....