ALEXANDRIA, Va., June 2 -- United States Patent no. 12,643,071, issued on June 2, was assigned to Donaldson Co. Inc. (Bloomington, Minn.) and Ecosce LLC (Oakland, Calif.).
"System and method for reclaiming solvent" was invented by Matthew P. Goertz (Bloomington, Minn.), Matthew S. Whitten (St. Paul, Minn.), Ahmed Shuja (Oakland, Calif.) and Shawn McLean (Sturbridge, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system for separating a solvent includes a first mixing tank comprising a waste solvent feed and a reactant feed; a first filter comprising a nanofiltration membrane; a distillation column or an evaporator; a condenser or cooler; and a pervaporation membrane. A method for separating a solvent...