GlaxoSmithKline Biologicals SA and GlaxoSmithKline LLC (collectively, “GSK”) recently filed suit in the District of Delaware against Pfizer, Inc. alleging that Pfizer’s respiratory syncytial virus (“RSV”) vaccine ABRYSVO infringes four U.S. patents covering GSK’s rival RSV vaccine, AVREXY. According to the complaint, AVREXY and ABRYSVO were approved by the U.S….
