ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,399,182, issued on Aug. 26, was assigned to Regeneron Pharmaceuticals Inc. (Tarrytown, N.Y.).
"Quantitation and identification of dimers in co-formulations" was invented by Yuetian Yan (Chappaqua, N.Y.) and Shunhai Wang (Scarsdale, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Methods and system for identification of dimer species using online chromatography and electrospray ionization mass spectrometry are provided. Also provided are methods and system for quantitation of heterodimer species using immunoprecipitation and liquid chromatography-mass spectrometry."
The patent was filed on Nov. 29, 2023, under Application No. 18/522,512.
*For furth...