2017-1240, 2017-1455, 2017-1887.

919 F.3d 1347 (2019)

ENDO PHARMACEUTICALS INC., Plaintiff-Appellant Mallinckrodt LLC, Plaintiff v. TEVA PHARMACEUTICALS USA, INC., Barr Laboratories, Inc., Actavis LLC, fka Actavis Inc., Actavis South Atlantic LLC, Teva Pharmaceuticals USA, Inc., Defendants-Appellees Actavis Pharma, Inc., Actavis Elizabeth LLC, Actavis Holdco U.S., Inc., Defendants.

United States Court of Appeals, Federal Circuit.

Decided: March 28, 2019.

Attorney(s) appearing for the Case

Martin Jay Black , Dechert LLP, Philadelphia, PA, argued for plaintiff-appellant. Also represented by Sharon K. Gagliardi ; Blake Greene , Austin, TX; Jonathan Loeb , Mountain View, CA; ROBERT RHOAD , Princeton, NJ.

William H. Burgess , Kirkland & Ellis LLP, Washington, DC, argued for defendants-appellees Actavis LLC, Actavis South Atlantic LLC, Teva Pharmaceuticals USA, Inc. Also represented by John C. O'Quinn ; James F. Hurst , Chicago, IL; Leslie M. Schmidt , New York, NY; Howard S. Suh , Charles A. Weiss , Eric H. Yecies , Holland & Knight, LLP, New York, NY.

Huiya Wu , Goodwin Procter LLP, New York, NY, for defendants-appellees Teva Pharmaceuticals USA, Inc., Barr Laboratories, Inc.

Before Wallach, Clevenger, and Stoll, Circuit Judges.

Endo Pharmaceuticals Inc. appeals the district court's decision holding the claims of U.S. Patent No. 8,808,737 ineligible under 35 U.S.C. § 101. See Endo Pharms. Inc. v. Actavis Inc., No. 14-cv-1381-RGA, 2015 WL 7253674 (D. Del. Nov. 17, 2015) ("District Court Op."), adopting report and recommendation...

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