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UNITED THERAPEUTICS CORP. v. LIQUIDIA TECHNOLOGIES

2022-2217, 2023-1021.

74 F.4th 1360 (2023)

UNITED THERAPEUTICS CORPORATION, Plaintiff-Cross-Appellant, v. LIQUIDIA TECHNOLOGIES, INC., Defendant-Appellant.

United States Court of Appeals, Federal Circuit.

Decided: July 24, 2023.

Attorney(s) appearing for the Case

Sanya Sukduang , Cooley LLP, Washington, DC, argued for defendant-appellant. Also represented by Jonathan Davies ; Deepa Kannappan , Palo Alto, CA; Erik Benton Milch , Reston, VA.

William M. Jay , Goodwin Procter LLP, Washington, DC, argued for plaintiff-cross-appellant. Also represented by William Covington Jackson , Jaime Santos , Rohiniyurie Tashima , Jenny J. Zhang ; Gerard Justin Cedrone , Boston, Ma; Adam William Burrowbridge . McDermott Will & Emery, LLP, Washington, DC; Douglas H. Carsten , Arthur Paul Dykhuis , Irvine, CA; Shaun R. Snader , United Therapeutics Corporation, Washington, DC.

Before Lourie, Dyk, and Stoll, Circuit Judges.

Liquidia Technologies, Inc. ("Liquidia") appeals from a decision of the United States District Court for the District of Delaware holding that (1) claims 1, 4, and 6-8 of U.S. Patent 10,716,793 ("the '793 patent") are not invalid and are infringed by Liquidia and (2) claims 1-3 of U.S. Patent 9,593,066 ("the '066 patent")...

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