ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,514, issued on Nov. 18, was assigned to HENKEL AG & Co. KGAA (Dusseldorf, Germany).
"Fabric softening composition comprising esterquat, cationic acrylic polymer, and germicidal cationic surfactant" was invented by Wei Sun (Trumbull, Conn.), Melanie A. Nitz (Norwalk, Conn.) and Regina Stehr (Neuss, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Liquid fabric softener compositions comprising (a) water-insoluble cationic softeners, (b) water-soluble cationic antibacterial agents and (c) cationic rheology modifying polymers are described that are stable homogenous mixtures. A method for determining stability of the softener formulations or deter...