Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8083809 | Azomethine direct dyes or reduced precursors of these dyes obtained from 2-chloro-3-amino-6-methylphenol, and hair dyeing method starting from these dyes and precursors | Madeleine Leduc, Eric Metais, Christophe Rondot | 2011-12-27 |
| 8066782 | Azomethine direct dyes or reduced precursors of azomethine direct dyes obtained from 2-alkylresorcinols, and hair dyeing process using these dyes or precursors | Madeleine Leduc, Eric Metais, Christophe Rondot | 2011-11-29 |