ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,775, issued on April 21, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).
"Sanitary agent in gel form for preventing biofilms" was invented by Tatiana Schymitzek (Krefeld, Germany) and Daniela Poethkow (Krefeld, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system having a WC basket that has at least one chamber, wherein: a self-adhesive sanitary agent in gel form is present in the chamber of the WC basket and adheres to the chamber sleeve; the chamber sleeve is completely closed on at least one side, and the agent adheres to the completely closed side of the chamber sleeve; the sanitary agent has at least one non-ionic adhes...