Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867793 | Nacreous pigments | Kalus Ambrosius, August Kanpp, Hans D. Brucker | 1989-09-19 |
| 4828826 | Cosmetic formulations with carrier-free iron oxide platelets | Andrea Griessmann, Gisela Lenz, Gernot Moschl | 1989-05-09 |