Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767633 | Transparent medium having angle-selective transmission or reflection properties and/or absorption properties | Elke Steudel, Gerhard Pfaff, Peter Reynders, Christoph Schmidt, Carsten Brabänder +1 more | 2004-07-27 |
| 6689205 | Multilayer interference pigments | Andrea Heyland, Christoph Schmidt, Christina Schank, Claudia Seibel | 2004-02-10 |