Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6478866 | Aqueous pigment preparations | Peter-Roger Nyssen, Achim Brand, Thomas Roick, Hans Geiger | 2002-11-12 |
| 6387189 | Surface-cleaning method | Andreas Groschl, Torsten Groth, Volker Hassmann, Jürgen Horn, Ingo Janisch +2 more | 2002-05-14 |