Issued Patents 2024
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12156933 | Substance for dyeing keratin fibers, containing specific nonionic emulsifiers, pigments and aminosilicones | Constanze Kruck, Sandra HILBIG, Daniela Kessler-Becker | 2024-12-03 |
| 12109298 | Improving the fastness to washing of pigment-containing dyes by using an oxidative pretreatment agent | Constanze Kruck, Sandra HILBIG, Daniela Kessler-Becker | 2024-10-08 |
| 12029808 | Kit and method for dyeing keratinous material by means of aminosilicone and a chromophoric compound | Constanze Kruck, Sandra HILBIG, Daniela Kessler-Becker | 2024-07-09 |
| 11957779 | Agent for dyeing keratinous material, containing aminosilicone, pigment and polysaccharide | Constanze Kruck, Sandra HILBIG, Susanne Dickhof, Daniela Kessler-Becker | 2024-04-16 |
| 11918671 | Multi-tone hair dyeing method in three steps | Constanze Kruck, Daniela Kessler-Becker, Sandra HILBIG | 2024-03-05 |
| 11883522 | Agent for dyeing keratinous material, containing aminosilicone, a chromophoric compound and phosphorous-containing surfactant | Constanze Kruck, Sandra HILBIG, Susanne Dickhof, Daniela Kessler-Becker | 2024-01-30 |
| 11872302 | Product for dyeing keratinous material, containing aminosilicone, a chromophoric compound and ester oil | Constanze Kruck, Sandra HILBIG, Daniela Kessler-Becker | 2024-01-16 |
| 11865201 | Product for dyeing keratinous material, containing aminosilicone, a chromophoric compound and ethoxylated fatty acid ester | Constanze Kruck, Sandra HILBIG, Daniela Kessler-Becker | 2024-01-09 |