US Patent Issued to Regeneron Pharmaceuticals on May 27 for "Liquid chromatography-mass spectrometry (LC-MS) methods for analyzing ampholyte lot variation" (New York Inventors)

ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,589, issued on May 27, was assigned to Regeneron Pharmaceuticals Inc. (Tarrytown, N.Y.).

"Liquid chromatography-mass spectrometry (LC-MS) methods for analyzing ampholyte lot variation" was invented by Rachel Mullen (East Greenbush, N.Y.), Clare Ryan (Wynantskill, N.Y.), Seamus O'Connor (Ballston Lake, N.Y.) and Stacey Helming (Troy, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure relates to methods of characterizing ampholyte compositions suitable for downstream applications such as capillary isoelectric focusing using liquid-chromatography-mass spectrometry."

The patent was filed on June 21, 2024, under Application No. 18/750,53...