US Patent Issued to Henkel on May 13 for "Method for dyeing keratinous material, including the application of an organosilicon compound, a dyeing compound, a sealing reagent and an alkaline pre-treatment agent" (German Inventors)

ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,036, issued on May 13, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).

"Method for dyeing keratinous material, including the application of an organosilicon compound, a dyeing compound, a sealing reagent and an alkaline pre-treatment agent" was invented by Juergen Schoepgens (Schwalmtal, Germany), Torsten Lechner (Langenfeld, Germany), Phillip Jaiser (Langenfeld, Germany), Avni Tairi (Duisburg, Germany), Carolin Kruppa (Hilden, Germany), Marc Nowottny (Monchengladbach, Germany), Carsten Mathiaszyk (Essen, Germany) and Andreas Walter (Ratingen, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for dyeing keratinous material...