Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9889321 | Agents for dyeing keratin fibers, containing at least one dimeric, ring-bridged azo dye | Antje Gebert-Schwarzwaelder, Helmut Giesa | 2018-02-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9889321 | Agents for dyeing keratin fibers, containing at least one dimeric, ring-bridged azo dye | Antje Gebert-Schwarzwaelder, Helmut Giesa | 2018-02-13 |