Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4327024 | Iminoisoindolinone pigments, process for their production and use thereof | — | 1982-04-27 |
| 4317929 | Tetraphenylketazines and isoindolinone pigments obtained therefrom | — | 1982-03-02 |
| 4314938 | Iminoisoindolinone pigments containing phenylazoacetoacetyl-aminophenylene groups | — | 1982-02-09 |