Mealey's (April 26, 2018, 7:55 AM EDT) -- WASHINGTON, D.C. — In an appellant brief filed April 23, three generic drug makers tell the Federal Circuit U.S. Court of Appeals that the asserted claims of a patent covering a Suboxone sublingual film used to treat opioid addiction are invalid as indefinite (Indivor Inc., et al., v. Dr. Reddy’s Laboratories Inc., et al., Nos. 2016-2277, -2278, -2397, -2398, 2017-2587, 2018-1010, -1058, -1061, -1062, -1114, -1115, -1119, -1176, -1177, Fed. Cir.)....