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H. LUNDBECK A/S v. LUPIN LTD.

2022-1194, 2022-1208, 2022-1246.

87 F.4th 1361 (2023)

H. LUNDBECK A/S, Takeda Pharmaceutical Company Limited, Takeda Pharmaceuticals U.S.A., Inc., Takeda Pharmaceuticals International AG, Takeda Pharmaceuticals America, Inc., Plaintiffs-Appellants v. LUPIN LTD., Lupin Pharmaceuticals, Inc., Macleods Pharma USA, Inc., Macleods Pharmaceuticals Ltd., Sandoz Inc., Sigmapharm Laboratories, LLC, Zydus Pharmaceuticals (USA) Inc., Alembic Global Holding S.A., Alembic Pharmaceuticals Inc., Alembic Pharmaceuticals Limited, Cadila Healthcare Ltd., Lek Pharmaceuticals, d.d., Defendants-Cross-Appellants.

United States Court of Appeals, Federal Circuit.

Decided: December 7, 2023.

Attorney(s) appearing for the Case

Brianne Bharkhda , Covington & Burling LLP, Washington, DC, argued for plaintiffs-appellants. Also represented by Geoege Frank Pappas , Einar Stole ; Kurt Calia , Palo Alto, CA.

David Brian Abramowitz , Locke Lord LLP, Chicago, IL, argued for defendants-cross-appellants Alembic Global Holding S.A., Alembic Pharmaceuticals Inc., Alembic Pharmaceuticals Limited, Cadila Healthcare Ltd., Lek Pharmaceuticals, d.d., Macleods Pharma USA, Inc., Macleods Pharmaceuticals Ltd., Sandoz Inc., Sigmapharm Laboratories, LLC, Zydus Pharmaceuticals (USA) Inc. Cadila Healthcare Ltd., Zydus Pharmaceuticals (USA) Inc. also represented by Hugh S. Balsam , Carolyn Anne Blessing , Michael Gaertner , Timothy Flynn Peterson , Jonathan B. Turpin ; August Melcher , Weil, Gotshal & Manges LLP, Redwood Shores, CA.

Deepro Mukerjee , Katten Muchin Rosenman LLP, New York, NY, argued for defendants-cross-appellants Lupin Ltd., Lupin Pharmaceuticals, Inc. Also represented by Lance Soderstrom ; Joseph Janusz , Jitendra Malik , Charlotte, NC.

Bradley C. Graveline , Sheppard Mullin Richter & Hampton LLP, for defendants-cross-appellants Alembic Global Holding S.A., Alembic Pharmaceuticals Inc., Alembic Pharmaceuticals Limited. Also represented by Todd E. Lundell , Costa Mesa, CA; Jesse A. Salen , San Diego, CA; Laura Burson , O'Melveny & Myers LLP, Los Angeles, CA.

Mary LaFleur , Crowell & Moring, LLP, Chicago, IL, for defendants-cross-appellants Lek Pharmaceuticals, d.d., Macleods Pharma USA, Inc., Macleods Pharmaceuticals Ltd., Sandoz Inc. Also represented by Laura A. Lydigsen , Mark Herbert Remus . Macleods Pharma USA, Inc., Macleods Pharmaceuticals Ltd. also represented by Christopher J. Sorenson , Merchant & Gould P.C., Minneapolis, MN.

Donald J. Mizerk , Husch Blackwell LLP, Chicago, IL, for defendant-cross-appellant Sigmapharm Laboratories, LLC. Also represented by Matthew Kamps , Philip D. Segrest, Jr. , Marc Richard Wezowaki ; Thomas P. Heneghan , Madison, WI.

Before Dyk, Prost, and Hughes, Circuit Judges.

H. Lundbeck A/S ("Lundbeck"), Takeda Pharmaceutical Company Ltd., Takeda Pharmaceuticals U.S.A., Inc., Takeda Pharmaceuticals International AG, and Takeda Pharmaceuticals America, Inc. (collectively "plaintiffs") appeal the final judgment of the United States District Court for the District of Delaware.

The district court...

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