Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478866 | Aqueous pigment preparations | Peter-Roger Nyssen, Wolfgang Zarges, Thomas Roick, Hans Geiger | 2002-11-12 |
| 5855662 | Aqueous pigment preparations | Josef Leitermann, Roger Nyssen, Klaus Schubert, Erhard Schuffenhauer, Karlheinz Wieser +1 more | 1999-01-05 |