No. 2012-1241.

725 F.3d 1315 (2013)

3M INNOVATIVE PROPERTIES COMPANY and 3M Company, Plaintiffs-Appellants, v. TREDEGAR CORPORATION and Tredegar Film Products Corporation, Defendants-Appellees.

United States Court of Appeals, Federal Circuit.

August 6, 2013.

Attorney(s) appearing for the Case

Jonathan F. Cohn , Sidley Austin LLP, of Washington, DC, argued for plaintiffs-appellants. With him on the brief were Carter G. Phillips and Brian P. Morrissey.

Charles K. Verhoeven , Quinn Emanuel Urquhart & Sullivan LLP, of San Francisco, CA, argued for defendants-appellees. With him on the brief were Christopher E. Stretch , Emily C. O'Brien and Aaron J. Bergstrom. Of counsel on the brief was Kurt J. Niederluecke , Fredrickson & Byron, P.A., of Minneapolis, MN.

Concurring-in-part and dissenting-in-part opinion filed by Circuit Judge O'MALLEY.

REYNA, Circuit Judge.

This appeal deals with claim construction disputes arising out of 3M Innovative Properties Company and 3M Company's (collectively, "3M") allegations of patent infringement brought against Tredegar Corporation and Tredegar Film Products Corporation (collectively, "Tredegar") in the United States District Court for the District of Minnesota ("district court"). 3M competes in the elastomeric laminate industry with Tredegar. 3M is a global manufacturing...

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