Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6602340 | Transparent medium with angular-selective transmitting or reflecting properties | Christina Schank, Gerhard Pfaff, Alexandra BROWNFIELD, Wolfgang Hechler | 2003-08-05 |
| 6551397 | Pigment preparation | Wolfgang Hechler | 2003-04-22 |
| 5753026 | Process for the preparation of inclusion pigments | Mathias Kuntz, Hubert Linne, Dieter Heinz, Rodney Riddle | 1998-05-19 |
| 5672200 | Pigment preparation and its use | Dieter Heinz, Heinz Mohr | 1997-09-30 |