Heraeus KULZER GmbH, Appellant v. ESSCHEM, INC. No. 09-3982.United States Court of Appeals, Third Circuit.Argued May 11, 2010. Opinion Filed July 28, 2010. [EDITOR’S NOTE: This case is unpublished as indicated by the issuing court.] Appeal from the United States District Court for the Eastern District of Pennsylvania (No. 09-MC-00017), District Judge: Honorable Cynthia M. […]