Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882436 | Semi-polar hyperdispersants for pigment bases | Arnold H. Gruben | 1989-11-21 |
| 4870139 | Polyamide/acrylic graft copolymers | Robert Catena | 1989-09-26 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882436 | Semi-polar hyperdispersants for pigment bases | Arnold H. Gruben | 1989-11-21 |
| 4870139 | Polyamide/acrylic graft copolymers | Robert Catena | 1989-09-26 |