Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6635090 | Dyeing method using a specific cationic derivative and a compound selected among a specific aldehyde, a specific ketone, a quinone and a di-imino-isoindoline or 3-amino-isoindolone derivative | Alain Lagrange | 2003-10-21 |