Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4958030 | Process for the preparation of 3-phenylpyrrole derivatives | Rudolf W. Pfluger, Jean Indermuhle | 1990-09-18 |
| 4612014 | Use of metal complexes of hydrazones as pigments | — | 1986-09-16 |
| 4529804 | Naphthostyril Ni or Cu complexes, a process for their preparation, and high molecular weight organic material pigmented with these metal complexes | Christoph Frey | 1985-07-16 |