Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859770 | Process for making alpha-phase phthalocyanine blue pigment comprising substantially 100 percent isometric crystals | Thomas E. Donegan, Timothy G. Leary | 1989-08-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859770 | Process for making alpha-phase phthalocyanine blue pigment comprising substantially 100 percent isometric crystals | Thomas E. Donegan, Timothy G. Leary | 1989-08-22 |