Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6679923 | Composition for dyeing keratin fibers, comprising a pyrazoline-4,5-dione and an aromatic primary amine | Laurent Vidal, Mireille Maubru | 2004-01-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6679923 | Composition for dyeing keratin fibers, comprising a pyrazoline-4,5-dione and an aromatic primary amine | Laurent Vidal, Mireille Maubru | 2004-01-20 |