Yahoo Slams Facebook with Patent Violation LawsuitInternet portal Yahoo Inc. has filed a lawsuit against Facebook Inc., alleging that the Menlo Park, Calif.-based social networking giant violates ten of Yahoo’s patents.CopyFacebookXTruthGettrLinkedInTelegramEmailSaveYahoo headquarters in Sunnyvale, California. Jan Jekielek/The Epoch TimesBy Ram Srinivasan3/14/2012Updated: 10/1/2015Print