Mealey's (October 23, 2017, 1:36 PM EDT) -- WASHINGTON, D.C. — A Delaware federal judge’s determination that two claims of a patented contraceptive device was erroneous because a person of ordinary skill would not have known to modify prior art to arrive at the claimed invention, the Federal Circuit U.S. Court of Appeals ruled Oct. 19 (Merck Sharp & Dohme BV v. Warner Chilcott Company LLC, No. 16-2583, Fed. Cir., 2017 U.S. App. LEXIS 20441)....