Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |