Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6074754 | Spherical pigments, process for producing them and use thereof | Hauke Jacobsen, Werner Hartmann, Stipan Katusic, Andreas Schulz, Ralph Brandes +1 more | 2000-06-13 |
| 6071332 | Decorative preparations for producing gold-containing decorations and their use | Andreas Schulz | 2000-06-06 |
| 5707436 | Process for the production of purple pigments | Klaus-Dieter Fritsche, Bernd Dorbath, Kerstin Ruhnau | 1998-01-13 |
| 5589273 | Process and agent for the production of purple decoration | Bernd Dorbath, Klaus-Dieter Fritsche | 1996-12-31 |
| 5266109 | EMI shielding pigments, a process for their preparation and their use | Werner Voelker, Wilan Jerke, Kai Dorer, Bernd Dorbath, Karl-Anton Starz | 1993-11-30 |
| 4487664 | Method and electrolytic bath for the deposition of low carat bright gold-silver alloy coatings | Bernd Dorbath, Rainer Schlodder | 1984-12-11 |