Issued Patents 2025
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12357549 | Method for dyeing keratinous material, comprising the use of an organosilicon compound, a dyeing compound, a sealing reagent, and a pre-treatment agent | Gabriele Weser, Ulrike Schumacher, Claudia Kolonko, Caroline Kriener | 2025-07-15 |
| 12329849 | Method for dyeing keratinous material, comprising the use of an organosilicon compound, a dyeing compound, a sealing reagent, and a polymer-containing post-treatment agent | Gabriele Weser, Leonie HANSEN, Ulrike Schumacher, Claudia Kolonko, Caroline Kriener +4 more | 2025-06-17 |
| 12220470 | Pigment suspension and cosmetic agent prepared using the pigment suspension | Gabriele Weser, Ulrike Schumacher, Claudia Kolonko, Caroline Kriener, Irmgard Bender +5 more | 2025-02-11 |
| 12201712 | Method for dyeing keratinous material, comprising the use of an organosilicon compound, a phosphoric acid ester and a dyeing compound | Gabriele Weser, Ulrike Schumacher, Caroline Kriener, Claudia Kolonko, Phillip Jaiser +4 more | 2025-01-21 |