Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6599355 | Interference pigments with great color strength | Christoph Schmidt, Sabine Schoen, Dieter Heinz | 2003-07-29 |
| 6579355 | Interference pigments | Christoph Schmidt, Dieter Heinz | 2003-06-17 |
| 6508876 | Colored interference pigment | Hans-Dieter Bruckner, Karl Osterried, Reiner Vogt | 2003-01-21 |