US Patent Issued to Wisconsin Alumni Research Foundation on July 28 for "Diffusion transfer functionalized membrane" (Wisconsin Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,691,420, issued on July 28, was assigned to Wisconsin Alumni Research Foundation (Madison, Wis.).

"Diffusion transfer functionalized membrane" was invented by Mark Raymond Etzel (Madison, Wis.) and Na Li (Madison, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of making a filter, the resulting filter, and a method of using the filter to filter proteins from solution are described. The method includes contacting a porous, polymeric substrate with a transfer liquid comprising a solvent(s) and a charged polymeric solute. The transfer liquid and the polymeric substrate have a Hansen Solubility Parameter ("HSP") distance of from about 10 to abo...