Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6630005 | Mixtures of reactive dyes and their use | Athanassios Tzikas, Herbert Klier | 2003-10-07 |
| 6551364 | Dye mixtures, 1:2 cobalt complex formazan dyes and their use | Marcel Frick | 2003-04-22 |
| 6521032 | Magenta inks comprising copper complex azo dyes based on 1-naphthol-di- or tri-sulfonic acids | Marcel Frick | 2003-02-18 |