Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5662739 | Use of fatty acid taurides for the dispersion of polycyclic pigments | Erwin Dietz | 1997-09-02 |
| 5626662 | Fine division in the preparation of organic pigments | — | 1997-05-06 |
| 5614014 | Process for the preparation of Quinacridone pigments | — | 1997-03-25 |
| 5614015 | Process for the preparation of 4,10-dibromoanthanthrone pigment | Gerhard Wilker | 1997-03-25 |
| 5591258 | Preparation of linear, unsubstituted quinacridone pigments of the .beta.-phase | Erwin Dietz | 1997-01-07 |