Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11878071 | Product for dyeing keratinous material, containing aminosilicone, a chromophoric compound, preservative and a fatty constituent | Constanze Kruck, Sandra HILBIG, Daniela Kessler-Becker | 2024-01-23 |
| 11771641 | Method for dyeing keratinous material by means of a premix of aminosilicone and a chromophoric compound | Constanze Kruck, Sandra HILBIG, Daniela Kessler-Becker | 2023-10-03 |
| 11529303 | Method for dyeing keratinous material, containing dye and an acidic post-treatment agent | Marc Nowottny, Torsten Lechner | 2022-12-20 |