ALEXANDRIA, Va., June 17 -- United States Patent no. 12,312,564, issued on May 27, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).
"Soluble laundry detergent sheets with textile stiffening agent and cellulase" was invented by Frank Janssen (Cologne, Germany), David Matulla (Hilden, Germany), Susanne Schneider (Duesseldorf, Germany), Birgit Scheffers (Duesseldorf, Germany), Beate Seebauer (Langenfeld, Germany) and Dorothea Kapitza (Duesseldorf, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for manufacturing a water-soluble laundry detergent sheet from a liquid composition including the following components: (a) at least one textile stiffening agent, (b) at least one surfactant, ...