Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6693196 | Couplers for use in oxidative hair dyeing | Yuh-Guo Pan, James S. Anderson | 2004-02-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6693196 | Couplers for use in oxidative hair dyeing | Yuh-Guo Pan, James S. Anderson | 2004-02-17 |