ALEXANDRIA, Va., July 28 -- United States Patent no. 12,692,483, issued on July 28, was assigned to Donaldson Co. Inc. (Bloomington, Minn.).

"Protein-based purification matrices and methods of using the same" was invented by Kelli M. Luginbuhl (Durham, N.C.) and Michael Dzuricky (Durham, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided herein are protein-based purification matrices and methods of use thereof to purify biologics and/or to remove contaminants from a composition. Methods of bringing two or more biologics in close proximity are also provided. The disclosed compositions and methods allow for faster, more efficient purification of a biologic compared to traditional affinity chromatogra...