(April 20, 2016, 10:41 AM EDT) -- WASHINGTON, D.C. — A complaint by Google Inc. seeking a declaration of patent invalidity and noninfringement can proceed in the U.S. District Court for the District of Delaware, the Federal Circuit U.S. Court of Appeals ruled April 1 (GeoTag Inc. v. Google Inc., No. 15-1140, Fed. Cir.; 2016 U.S. App. LEXIS 5966)....