Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859770 | Process for making alpha-phase phthalocyanine blue pigment comprising substantially 100 percent isometric crystals | Thomas E. Donegan, Arvind S. Patil | 1989-08-22 |
| 4853039 | Process for making a phthalocyanine pigment dispersion | Thomas E. Donegan, John H. Bantjes | 1989-08-01 |
| 4709021 | Copper phthalocyanine pigments | Thomas E. Donegan | 1987-11-24 |