US Patent Issued to Henkel on July 15 for "Method for dyeing keratinous material, comprising the use of an organosilicon compound, a dyeing compound, a sealing reagent, and a pre-treatment agent" (German Inventors)

ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,549, issued on July 15, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).

"Method for dyeing keratinous material, comprising the use of an organosilicon compound, a dyeing compound, a sealing reagent, and a pre-treatment agent" was invented by Jing Hodes (Hagen, Germany), Gabriele Weser (Essen, Germany), Ulrike Schumacher (Duesseldorf, Germany), Claudia Kolonko (Remscheid, Germany) and Caroline Kriener (Duesseldorf, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for dyeing keratinous material, in particular human hair, may include applying a first agent to the keratinous material. The first agent may include hydrogen pero...