FOSTER CITY, Calif.--(BUSINESS WIRE)--Gilead Sciences, Inc. (Nasdaq:GILD) today announced that it has filed a lawsuit in U.S. District Court in New Jersey against Lupin Limited for infringement against Gilead’s patents for Ranexa® (ranolazine extended-release tablets). The lawsuit is based on an Abbreviated New Drug Application filed by Lupin, which seeks approval to manufacture and market a generic version of Ranexa before the expiration of Gilead’s Ranexa patents.