Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697984 | Dye preparations with ethylene oxide-castor oil reaction products | Dieter Swatzina, Christos Vamvakaris, Juliane Krusemann | 1997-12-16 |
| 5663028 | Electrostatic toners containing aminodiacetic acid derivatives | Alfred Oftring, Juergen Schneider, Rainer Dyllick-Brenzinger | 1997-09-02 |
| 5616644 | Dyestuff-containing aqueous dispersions | Bernhard Schlarb, Kurt Wendel, Helmut Bellaire | 1997-04-01 |