Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7132001 | 3-aminophenol derivatives and dyes that contain these compounds while serving to dye keratin fibers | Gisela Umbricht, Hans-Juergen Braun | 2006-11-07 |
| 7033401 | 3-Aminophenol derivatives substituted in the 2-position, and dyes containing these compounds | Gisela Umbricht, Hans-Juergen Braun | 2006-04-25 |