ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,060, issued on March 31, was assigned to KAO GERMANY GMBH (Darmstadt, Germany).
"Bleaching powder composition" was invented by Ines Rabelo De Moraes (Darmstadt, Germany), Steven Breakspear (Darmstadt, Germany), Peter Bauer (Darmstadt, Germany) and Bernd Nocker (Darmstadt, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "Bleaching powders, kits-of-parts for bleaching, and bleaching methods comprise at least xanthine and/or xanthine derivatives, wherein it was unexpectedly found that xanthine and/or xanthine derivatives in bleaching powder reduce damage to keratin fibers during bleaching methods or processes."
The patent was filed on Oct. 30, ...