Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733540 | Use of 2-(sulphonylamino)phenols as couplers in oxidation coloring | Laurent Vidal | 2004-05-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6733540 | Use of 2-(sulphonylamino)phenols as couplers in oxidation coloring | Laurent Vidal | 2004-05-11 |