Nos. 2014-1575, 2014-1576.

805 F.3d 1064 (2015)

BELDEN INC., Appellant v. BERK-TEK LLC, Cross-Appellant.

United States Court of Appeals, Federal Circuit.

November 5, 2015.

Attorney(s) appearing for the Case

Matthew B. Lowrie , Foley & Lardner LLP, Boston, MA, argued for appellant. Also represented by Matthew Ambros , Aaron W. Moore .

James S. Blank , Kaye Scholer LLP, New York, NY, argued for cross-appellant. Also represented by Benjamin C. Hsing , David Soofian ; Gregory C. Antrim , Joseph Sofer , Sofer & Haroun, LLP, New York, NY.

Frances Lynch , Office of the Solicitor, United States Patent and Trademark Office, Alexandria, VA, argued for intervenor Michelle K. Lee. Also represented by Nathan K. Kelley , Thomas W. Krause , Robert J. McManus , Scott Weidenfeller .

Before NEWMAN, DYK, and TARANTO, Circuit Judges.

Belden Inc. owns U.S. Patent No. 6,074,503, which discloses and claims a method for making a communications cable. On a petition for inter partes review under 35 U.S.C. § 311 et seq. filed by the predecessor of Berk-Tek LLC, the Patent and Trademark Office's Patent Trial and Appeal Board instituted a review and...


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