Liquidia files patent infringement suit against United Therapeutics over treprostinil dry powder patent

Liquidia Corp

Filed lawsuit on April 21, 2025 in the Middle District of North Carolina against United Therapeutics.
Alleges infringement of U.S. Patent No. 10,898,494 covering dry powder treprostinil for pulmonary hypertension.
Action filed by Liquidia Technologies, Inc., a wholly owned subsidiary of Liquidia Corporation.
Patent infringement claim seeks remedy for unauthorized use of Liquidia's dry powder treprostinil technology.

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