(January 27, 2017, 11:26 AM EST) -- WASHINGTON, D.C. — An Illinois federal judge did not err in concluding, following a bench trial, that a defendant’s assertion of patent invalidity fails as a matter of law, the Federal Circuit U.S. Court of Appeals ruled Jan. 26 (Cumberland Pharmaceuticals v. Mylan Institution LLC, et al., Nos. 16-1155, -1259, Fed. Cir.; 2017 U.S. App. LEXIS 1375)....