Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10603260 | Storage-stable developer for oxidative dye | Burkhard Mueller, Torsten Lechner, Lucile Bonnin, Laura Knechtel | 2020-03-31 |
| 7393367 | Agent for dyeing keratin-based fibers | Wibke Gross, Horst Hoffkes, Doris Oberkobusch, Helmut Muller | 2008-07-01 |