Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7318863 | Azo pigment preparations for packaging gravure and flexographic printing | Heinz-Gunter Bach, Rainer Winter | 2008-01-15 |
| 7118623 | Diaryl yellow pigment preparations | Heinz-Gunter Bach, Rainer Winter, Thomas Heber, Rolf Kaiser | 2006-10-10 |
| 6110267 | Pigment combinations for inks for the intaglio printing of illustrations, having improved rheological properties | Rainer Winter, Ibrahim Zidan, Alexander Sieber | 2000-08-29 |
| 4859728 | Pasty pigment formulations, production and use thereof | Manfred Schneider, Alexander Sieber, Manfred Zimmermann | 1989-08-22 |