Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10821063 | Method for decolorizing dyed keratinic fibers | Helmut Giesa, Astrid Kroos | 2020-11-03 |
| 10617618 | Agent for oxidative dyeing of hair containing anisole derivatives | Ralph Nemitz, Astrid Kroos, Annika Koenen | 2020-04-14 |
| 10561594 | Agent for stabilizing keratin fibers with 5-ring heterocycles | Ralph Nemitz, Astrid Kroos | 2020-02-18 |