Microsoft Seeks Review Of 2 Patents In 4 Inter Partes Petitions

(May 26, 2016, 9:31 AM EDT) -- ALEXANDRIA, Va. — Attacking two Corel Software LLC patents as invalid as obvious in light of various pieces of prior art, Microsoft Corp. on May 23 filed a total of four petitions for inter partes review (IPR) with the Patent Trial and Appeal Board (In re: Umbedacht, Nos. IPR2016-01083, -01084, -01085, -01086, PTAB)....