Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4450203 | Electrographic coatings containing acrylamide copolymers | Frank J. Ragas, Ralph L. Minnis | 1984-05-22 |
| 4400441 | Electrographic coating containing aqueous emulsion copolymerized acrylamide copolymers | Ralph L. Minnis, Frank J. Ragas | 1983-08-23 |
| 4339505 | Electrographic coatings containing acrylamide copolymers | Frank J. Ragas, Ralph L. Minnis | 1982-07-13 |
| 4204971 | Calcium oxide or hydroxide to improve the charge acceptance of electrographic dielectric resins | — | 1980-05-27 |