The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2025
Filed:
Jan. 17, 2022
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Jing Hodes, Hagen, DE;
Gabriele Weser, Essen, DE;
Ulrike Schumacher, Duesseldorf, DE;
Claudia Kolonko, Remscheid, DE;
Caroline Kriener, Duesseldorf, DE;
Henkel AG & Co. KGaA, Düesseldorf, DE;
Abstract
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 peroxide. The method may further include applying a second agent to the keratinous material. The second agent may include at least one organosilicon compound from the group of silanes having one, two, or three silicon atoms. The method may further include applying a third agent to the keratinous material where the third agent includes at least one sealing reagent. At least one of the second or third agents may further include at least one dyeing compound from the group consisting of pigments and/or direct dyes.