Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6391064 | Composition for hair dyeing comprising condensates of quinoline-5, 8-diones or of quinoxaline-5,8-diones and substituted pyrroles, anilines or indoles | Jean Maignan, Sylvie Genard | 2002-05-21 |