Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4607096 | Azo pigments obtained by diazotizing in a dipolar aprotic organic solvent | Josef Landler, Klaus Hunger | 1986-08-19 |
| 4182708 | Process for the preparation of azo pigments by diazotizing in a dipolar aprotic organic solvent and azo pigments obtained therefrom | Josef Landler, Klaus Hunger | 1980-01-08 |