Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6399044 | Skin-coloring powder mixture | Thekla Kurz, Sabine Hitzel, Roland Martin | 2002-06-04 |
| 6019831 | Non-lustrous pigments | Christoph Schmidt, Claudia Seibel, Margarete Herbski, Klaus Ambrosius | 2000-02-01 |
| 5718906 | Light-stable cosmetic composition | Roland Martin, Thekla Kurz, Gerd Bauer, Ulrich Heywang | 1998-02-17 |
| 5656262 | Skin-coloring powder mixture | Thekla Kurz, Sabine Hitzel, Roland Martin | 1997-08-12 |
| 5009711 | Golden color luster pigments | Manfred Weigand | 1991-04-23 |
| 4780140 | Platelet-shaped iron oxide pigments | Klaus-Dieter Franz, Reiner Esselborn, Hans-Dieter Bruckner | 1988-10-25 |