Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5229515 | Process for preparing modified .beta.-quinacridone pigment | Walter Zukowski, Fridolin Babler, Edward E. Jaffe | 1993-07-20 |
| 5025041 | Pearlescent coating compositions | Edward E. Jaffe | 1991-06-18 |
| 4895949 | Process for preparation of quinacridone solid solutions | Edward E. Jaffe | 1990-01-23 |
| 4895948 | Process for preparation of opaque quinacridones | Edward E. Jaffe | 1990-01-23 |
| 4810802 | Process for the preparation of brominated pyrrolo-[3,4-c]-pyrroles and mixtures thereof | Olof Wallquist, Abul Iqbal, Alain C. Rochat | 1989-03-07 |
| 4778899 | Process for the preparation of pyrrolo (3,4-c) pyrroles | Abul Iqbal, Alain C. Rochat, Olof Wallquist | 1988-10-18 |
| 4749795 | Phenyl substituted pyrrolinones | Abul Igbal, Alain C. Rochat | 1988-06-07 |
| 4720305 | Mixtures of pigments | Abul Iqbal, Alain C. Rochat, Fridolin Babler | 1988-01-19 |
| 4681971 | Phenyl substituted aminodicarboxylate esters | Abul Iqbal, Alain C. Rochat | 1987-07-21 |
| 4659775 | Process for the preparation of pyrrolo[3,4-c]pyrroles, and novel pyrrolo[3,4-c]pyrroles | Abul Iqbal, Alain C. Rochat, Olof Wallquist | 1987-04-21 |