Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6602340 | Transparent medium with angular-selective transmitting or reflecting properties | Gerhard Pfaff, Alexandra BROWNFIELD, Joachim Weitzel, Wolfgang Hechler | 2003-08-05 |
| 6596070 | Interference pigments | Christoph Schmidt, Gerhard Pfaff, Sabine Schoen | 2003-07-22 |