Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5505741 | Processes for dyeing of keratinous fibers with compositions which contain 2-sulfurated metaphenylenediamines in combination with oxidation dye precursors | Alain Genet, Alain Lagrange | 1996-04-09 |