Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889877 | High solids CB printing ink | — | 1989-12-26 |
| 4729792 | Microcapsules, printing inks and their production | — | 1988-03-08 |
| 4623391 | Color developers for pressure-sensitive or heat-sensitive recording papers | — | 1986-11-18 |
| 4531139 | Color developers for pressure-sensitive or heat-sensitive recording papers | — | 1985-07-23 |
| 4321093 | Moisture-set color developer ink | — | 1982-03-23 |