Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620850 | Composition and process for the oxidative dyeing of hair | Heinrich Bachmann | 1986-11-04 |
| 4479803 | Agent for oxidative dyeing of hair | Heinrich Bachmann | 1984-10-30 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620850 | Composition and process for the oxidative dyeing of hair | Heinrich Bachmann | 1986-11-04 |
| 4479803 | Agent for oxidative dyeing of hair | Heinrich Bachmann | 1984-10-30 |