(February 3, 2017, 7:30 AM EST) -- WASHINGTON, D.C. — E.I. du Pont de Nemours & Co. in a Jan. 18 petition asks the U.S. Supreme Court to answer whether the Seventh Amendment to the Constitution and KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398, 421 (2007), allow a court to find a claimed invention obvious on summary judgment because elements of the claimed invention may have existed in prior art (E.I. du Pont de Nemours & Co. v. MacDermid Printing Solutions LLC, No. 16-905, U.S. Sup.)....