U.S. Supreme Court Declines To Review Rulings That Invalidate United Therapeutics' Patent; Decisions That Liquidia Does Not Infringe Any Valid Claims Of The Three Patents Originally Asserted By United Therapeutics Are Now Final And Not Subject To Further Appeal

• U.S. Supreme Court denied United Therapeutics' petition to appeal rulings that found all claims of U.S. Patent No. 10,716,793 ('793 Patent) were invalid
• Decisions that Liquidia does not infringe any valid claims of the three patents originally asserted by United Therapeutics are now final and not subject to further appeal

MORRISVILLE, N.C., Oct. 07, 2024 (GLOBE NEWSWIRE) -- Liquidia Corporation (NASDAQ:LQDA), a biopharmaceutical company developing innovative therapies for patients with rare cardiopulmonary diseases, today announced that the United States Supreme Court has rejected United Therapeutics' (UTHR) petition for a writ of certiorari, which requested permission to appeal prior decisions which found that all claims of U.S. Patent No. 10,716,793 ('793 Patent) are unpatentable due to prior art. As a result, the decision by the Patent Trial and Appeal Board (PTAB) in July 2022, which was affirmed by the U.S. Court of Appeals for the Federal Circuit (Federal Circuit) in December 2023, is now final and not subject to further appeal.