Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4997917 | Preparation of 1:2 chromium complex azo dyes asymmetrically substituted with solubilizing | Daniel Parisot, Hans Schaller | 1991-03-05 |
| 4933437 | Preparation of 1:2 chromium complex azo dyes asymmetrically substituted with solubilizing groups | Daniel Parisot, Hans Schaller | 1990-06-12 |