Atossa Therapeutics Announces Issuance of U.S. Patent No. 12,281,056, Including 58 Claims Covering Various Formulations for its (Z)-endoxifen Portfolio

SEATTLE, April 30, 2025 (GLOBE NEWSWIRE) -- Atossa Therapeutics, Inc. (Nasdaq: ATOS) (“Atossa” or the “Company”), a clinical-stage biopharmaceutical company developing innovative medicines for breast cancer, today announced that the United States Patent and Trademark Office (USPTO) has granted a new patent (U.S. Patent No. 12,281,056) directed to highly pure and stable enteric oral formulations comprising (Z)-endoxifen as well as therapeutic methods of using those oral formulations.