Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5145997 | Poly (alkylene oxide) substituted acetoacetanilides | Anthony C. Zwirgzdas, Terence R. Chamberlain | 1992-09-08 |
| 5062894 | Poly (alkylene oxide)-modified diarylide pigment composition | Anthony C. Zwirgzdas, Terence R. Chamberlain | 1991-11-05 |
| 5024698 | Monoazo pigment compositions | Manuel Z. Gregorio | 1991-06-18 |
| 5021090 | Water-based diarylide pigment compositions | Manuel Z. Gregorio | 1991-06-04 |
| 4946508 | Disazo pyrazolone pigment compositions | Manuel Z. Gregorio | 1990-08-07 |
| 4946509 | Diarylide pigment compositions | Manuel Z. Gregorio, Anthony C. Zwirgzdas | 1990-08-07 |
| 4747882 | Process for the direct production of printing inks | James Keightley | 1988-05-31 |
| 4468255 | Rheology modifiers for arylide yellow pigment dispersions and pigment dispersions containing same | Theodore Sulzberg | 1984-08-28 |