Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5508389 | Process for producing concentrated aqueous solutions of anionic azo dyes | Peter Mischke, Kurt Hohmann, Eckhard Schwab | 1996-04-16 |
| 4963660 | Process for the reduction of heavy metal ions in excess from aqueous synthesis solutions of water soluble heavy metal complex dyestuffs | Uwe Mrotzeck, Peter Mischke, Gunther Schwaiger, Werner Russ | 1990-10-16 |
| 4581036 | Process for preparing liquid low-salt aqueous reactive dyestuff compositions | Konrad Opitz, Heinrich Pohlmann, Christian Fabel, Siegfried Wilhelm, Franz Mitter | 1986-04-08 |