Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12290584 | Hair dyeing method using natural dyes and metal salt | Lusine Sargsyan, Hartmut Manneck, Volkmar Vill | 2025-05-06 |
| 12178897 | Oxidative dyeing agent for keratin fibers comprising novel dye precursor combinations | Razi Abbas, Tugce Cansev, Astrid Kleen, Hartmut Manneck, Stefan Hoepfner +1 more | 2024-12-31 |
| 12109291 | Oxidative dyeing agent for keratin fibers comprising novel dye precursor combinations | Razi Abbas, Tugce Cansev, Astrid Kleen, Hartmut Manneck, Stefan Hoepfner +1 more | 2024-10-08 |
| 12102704 | Oxidative dyeing agent for keratin fibers comprising novel dye precursor combinations | Razi Abbas, Tugce Cansev, Astrid Kleen, Hartmut Manneck, Stefan Hoepfner +1 more | 2024-10-01 |
| 12097274 | Oxidative dyeing agent for keratin fibers comprising novel dye precursor combinations | Razi Abbas, Tugce Cansev, Astrid Kleen, Hartmut Manneck, Stefan Hoepfner +1 more | 2024-09-24 |
| 12048756 | Pigment suspension and method for dying keratinous material using the pigment suspension | Rene Krohn, Jessica BRENDER, Stefan Hoepfner | 2024-07-30 |
| 11998629 | Method for dyeing keratinous material, comprising the use of an organosilicon compound, an effect pigment and a film-forming polymer | Rene Krohn, Stefan Hoepfner, Jessica BRENDER | 2024-06-04 |
| 11883518 | Method for dyeing keratinous material, comprising the use of an organosilicon compound, an hydroxycarboxylic acid ester, a diol and a dyeing compound | Rene Krohn, Jessica BRENDER, Stefan Hoepfner | 2024-01-30 |
| 11654095 | Method for dyeing keratinous material, comprising the use of an organosilicon compound, a chromophoric compound, a modified fatty acid ester and a sealing reagent II | Rene Krohn, Jessica BRENDER, Stefan Hoepfner | 2023-05-23 |
| 11033472 | Hair-care agent and method for oxidative hair dying or bleaching with selected dicarboxylic acids | Hartmut Manneck, Astrid Kleen-Fehres | 2021-06-15 |
| 10987291 | Gentle agents and methods for oxidative dyeing using selected dicarboxylic acids | Hartmut Manneck, Astrid Kleen-Fehres | 2021-04-27 |
| 10869816 | Powder additive to reduce the damage of bleaching and colouring agents | Hartmut Manneck, Marc Stucky, Stephanie A. Smith, Robert Schaeffler | 2020-12-22 |
| 10293191 | Hair-conditioning agent and method for oxidative hair dyeing with improved brightening performance | Sylvia Kerl, Susanne Bietz, Hartmut Manneck | 2019-05-21 |
| 10143646 | Oxidative coloring or blonding agent gentle on hair, and gentle hair coloring or blonding method | Astrid Kleen-Fehres, Hartmut Manneck | 2018-12-04 |
| 9993406 | Agent and method for oxidative hair coloring which are gentle on keratin fibers | Hartmut Manneck, Stefan Hoepfner, Jessica BRENDER | 2018-06-12 |
| 9980891 | Agent and method for oxidative hair coloring or bleaching, which are gentle on hair | Hartmut Manneck, Astrid Kleen-Fehres | 2018-05-29 |