Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374288 | Oxidative hair dyeing method, composition, and kit utilizing hydroxyl substituted benzothiazines | Gottfried Wenke | 1994-12-20 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5374288 | Oxidative hair dyeing method, composition, and kit utilizing hydroxyl substituted benzothiazines | Gottfried Wenke | 1994-12-20 |