Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5298535 | Pigment compositions for solvent and water-based ink systems and the methods for producing them | — | 1994-03-29 |
| 5176750 | Azo pigment compositions and process for their preparation | Richard Fischer | 1993-01-05 |