Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4760151 | Dithioketo pyrrolopyrroles | Alain C. Rochat, Abul Iqbal, Jin Mizuguchi | 1988-07-26 |
| 4632893 | Electrophotographic recording material containing selected dithioke topyrrolopyrroles | Alain C. Rochat, Abul Iqbal, Jin Mizuguchi | 1986-12-30 |
| 4191566 | Electrophotographic imaging process using anthraquinoid black pigments or metal complexes | Gunther Zwahlen, Christoph Frey, Georgios Zographos | 1980-03-04 |