Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6773463 | Agent and method for dyeing keratin fibers | Véronique Charrière, Hans-Jurgen Braun | 2004-08-10 |
| 6749645 | Use of 4-nitro-2,1,3,-benzoxadiazole derivatives as dyes in coloring agents for keratin fibres | Véronique Charrière, Hans-Juergen Braun | 2004-06-15 |