Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5407746 | Platelet-like substrates | Johann Dietz, Angelika Thurn-Muller | 1995-04-18 |
| 5354374 | Iron oxide pigments | — | 1994-10-11 |
| 5322561 | Conductive flaky pigments | Klaus Bernhardt | 1994-06-21 |
| 5302199 | Interference pigments | Klaus Bernhardt | 1994-04-12 |
| 5223360 | Materials coated with plate-like pigments | Klaus-Dieter Franz, Hartmut Hartner, Manfred Kieser, Axel von Daacke, Klaus Bernhardt | 1993-06-29 |