US Patent Issued to Amphastar Pharmaceuticals on Dec. 16 for "Stable epinephrine suspension formulation for inhalation with HFO propellant" (California Inventors)

ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,496,272, issued on Dec. 16, was assigned to Amphastar Pharmaceuticals Inc. (Rancho Cucamonga, Calif.).

"Stable epinephrine suspension formulation for inhalation with HFO propellant" was invented by Jack Yongfeng Zhang (Rancho Cucamonga, Calif.), Mary Zi-ping Luo (Rancho Cucamonga, Calif.), Ying Wang (Rancho Cucamonga, Calif.), Ray Lameng Lei (Rancho Cucamonga, Calif.), Christos Lymberopoulos (Rancho Cucamonga, Calif.) and Tielong Gao (Rancho Cucamonga, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Pharmaceutical aerosol formulations containing pre-micronized epinephrine, co-solvent ethanol, surfactant polysorbate 80, and propellant trans-1,3,3,3...