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REMBRANDT DATA TECHNOLOGIES, LP v. AOL, LLC

No. 2010-1002.

641 F.3d 1331 (2011)

REMBRANDT DATA TECHNOLOGIES, LP, Plaintiff-Appellant, v. AOL, LLC, Cavalier Telephone, LLC, and DIRECTV, Inc., Defendants, and Hewlett-Packard Company, Canon U.S.A., Inc., Canon Business Solutions, Inc., and Canon Information Technology Services, Inc., Defendants-Appellees.

United States Court of Appeals, Federal Circuit.

April 18, 2011.

Attorney(s) appearing for the Case

George Pazuniak , Womble Carlyle Sandridge & Rice, PLLC, of Wilmington, DE, argued for plaintiff-appellant. Of counsel were Virginia W. Hoptman and James Michael Lennon .

Michael J. Songer , Crowell & Moring, LLP, of Washington, DC, argued for defendants-appellees. With him on the brief was Michael H. Jacobs .

Before GAJARSA, LINN, and DYK Circuit Judges.

GAJARSA, Circuit Judge.

This is a patent infringement appeal the resolution of which depends on the interpretation of whether a license exists for the technology at issue. Rembrandt Data Technologies, LP ("Rembrandt") appeals the district court's decisions regarding contract interpretation, claim construction, and the invalidity of certain claims of United States Patent Nos. 5,251,236 ("'236 patent") and 5,311,578 ("'578 patent") (collectively, "patents-in-suit")...

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