Patent Owner Tells Federal Circuit Collateral Estoppel Finding Was Erroneous

(August 31, 2017, 1:52 PM EDT) -- WASHINGTON, D.C. — A Delaware federal judge erroneously entered a summary judgment of noninfringement in a longstanding dispute over a patented process for producing steel, the patent owners recently told the Federal Circuit U.S. Court of Appeals (ArcelorMittal and ArcelorMittal Atlantique et Lorraine v. AK Steel Corporation, No. 17-1637, Fed. Cir.)....