Press Release

Liquidia Technologies Prevails in High Blood Pressure Drug Patent Litigation

June 27, 2024

Washington, DC – June 27, 2024 – Cooley successfully prevailed in an inter partes review for Liquidia Technologies, a biopharmaceutical company focused on the development and commercialization of products to treat pulmonary hypertension, in its ongoing patent and trade secret dispute with United Therapeutics Corp. The US Court of Appeals for the Federal Circuit affirmed the Patent Trial and Appeal Board’s finding that all claims of US Patent No. 9,604,901 are invalid as obvious.

Partners Sanya Sukduang and Jonathan Davies led the Cooley team representing Liquidia, along with associates Brittany Cazakoff, Robert Minn and Rachel Preston.

Read the opinion

Cooley previously defeated a preliminary injunction filed by United Therapeutics in June 2024, and advised Liquidia on its first product launch in April 2024 and its $53 million initial public offering in August 2023.

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