ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,473,519, issued on Nov. 18, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).
"Soluble laundry detergent sheets with pro-fragrance compounds" was invented by Frank Janssen (Cologne, Germany), David Matulla (Hilden, Germany), Beate Seebauer (Langenfeld, Germany), Birgit Scheffers (Duesseldorf, Germany), Susanne Schneider (Duesseldorf, 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 pro-fragrance compound and/or zinc diricinoleate, (b) at least one su...