Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6776835 | Multilayer pigments based on coated metal platelets | Stephanie Andes, Sabine George, Margarete Herbski, Reiner Vogt, Johann Dietz +2 more | 2004-08-17 |
| 6767633 | Transparent medium having angle-selective transmission or reflection properties and/or absorption properties | Elke Steudel, Hans-Dieter Bruckner, Gerhard Pfaff, Christoph Schmidt, Carsten Brabänder +1 more | 2004-07-27 |
| 6719837 | Pearlescent pigments | Stephane Bertaux, Jens-Uwe Wichmann, Eberhard Schweda | 2004-04-13 |