Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6866710 | Inorganic spherical absorption pigments | Lilia Heider, Martin Knapp, Norbert Rick | 2005-03-15 |
| 4828826 | Cosmetic formulations with carrier-free iron oxide platelets | Klaus-Dieter Franz, Andrea Griessmann, Gernot Moschl | 1989-05-09 |