USA: E.I. du Pont de Nemours & Co. v. MacDermid Printing Solutions, L.L.C, United States Court of Appeals, Federal Circuit, No. 2015-1777, 19 August 2016
The asserted claims of a DuPont patent disclosing a process for preparing flexographic printing plates were invalid as obvious over prior art and therefore could not support infringement contentions against DuPont’s competitor, MacDermid Printing Solutions, the U.S. Court of Appeals for the Federal Circuit has held. In addition, MacDermid’s Digital CST printing plates did not…