ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,081, issued on March 24, was assigned to KAO Corp. (Tokyo).

"Cleaning composition for oral appliance" was invented by Takuya Handa (Nagareyama, Japan) and Tomoya Satou (Koto-ku, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cleaning composition for an oral appliance, including (A) and (B). (A) 0.05 mass % or more and 8 mass % or less of an anionic homopolymer or copolymer which has a mass average molecular weight of 2,000 or higher and 500,000 or lower and includes a constituent unit derived from (a1) an anionic monomer having a carboxyl group, a sulfo group, or a phosphoric acid group. (B) one or more surfactants selected from the group c...