Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6648925 | Coloring agent comprising transition metals | Peter Kuhm, Horst Hoeffkes, Gertrud Ewald, Hans-Oscar Stephan, Melita Heller | 2003-11-18 |
| 6649688 | Coating composition comprising at least three components, it preparation and use | Heinz-Peter Rink, Egbert Nienhaus, Wilma Locken | 2003-11-18 |
| 6555612 | Aqueous coating material and modular system for producing same | Heinz-Peter Rink | 2003-04-29 |