ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,082, issued on Sept. 8, was assigned to Kao Corp. (Tokyo).
"Aqueous oxidative composition comprising xanthine derivatives" was invented by Jens Heilmann (Darmstadt, Germany), Diana Bauer (Darmstadt, Germany), Steven Breakspear (Darmstadt, Germany) and Peter Bauer (Darmstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An aqueous oxidizing composition comprising a xanthine derivative is described. The composition may comprise more than 5% by weight of hydrogen peroxide. The composition may further comprise a lipophilic compound or a surfactant, and may be applied to keratin fibers. It has been unexpectedly found out that xanthine derivativ...