Issued Patents 1982
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4359418 | Amine salts of azo dyestuffs of the pyridone series | Gert Hegar | 1982-11-16 |
| 4355159 | Nickel complex pigments of azines | Abul Iqbal, Andre Pugin | 1982-10-19 |
| 4349671 | Process for the production of metal complexes of isoindoline azines | Abul Iqbal | 1982-09-14 |
| 4327212 | Isoindoline-azine nickel complex with piperazine | Francois L'Eplattenier | 1982-04-27 |
| 4312808 | Red monoazo dyestuffs | Fabio Beffa | 1982-01-26 |