Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693824 | Preparation of mixed crystals and solid solutions of 1, 4-diketo-pyrrolpyrroles | Jin Mizuguchi, Zhimin Hao, Abul Iqbal | 1997-12-02 |
| 5672716 | Yellow diketopyrrolopyrrole pigments | Bernd Lamatsch, Ingo Schloder | 1997-09-30 |