Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6645258 | Composition for dyeing keratin fibers which contain at least one diaminopyrazole, dyeing process, novel diaminopyrazoles and process for their preparation | Laurent Vidal, Agnes Burande, Michel Hocquaux | 2003-11-11 |
| 6551360 | Pyrazoline-3,5-dione-containing compositions for dyeing keratin fibres; their use in dyeing as couplers; dyeing process | Laurent Vidal | 2003-04-22 |