(May 15, 2017, 3:58 PM EDT) -- WASHINGTON, D.C. — A Delaware federal judge’s award of $2.5 million in attorney fees in connection with a successful defense of an equity action alleging fraud upon the court was not an abuse of discretion, the Federal Circuit U.S. Court of Appeals ruled May 11 (NOVA Chemicals Corp., et al. v. Dow Chemical Co., No. 16-1576, Fed. Cir., 2017 U.S. App. LEXIS 8338)....