Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4776704 | Mixing and dispensing syringe | Thomas V. Kopunek, Paul D. Hammesfahr | 1988-10-11 |
| 4659327 | Multiple dosage syringe | Douglas D. Bennett, Paul D. Hammesfahr, Earl C. Francis, Thomas V. Kopunek | 1987-04-21 |
| D288123 | Dental material dispenser | — | 1987-02-03 |
| 4526490 | Dispenser for flowable material | — | 1985-07-02 |
| 4515267 | Dental mixing and extrusion capsule | — | 1985-05-07 |
| 4384853 | Ejector holder for capsule-like cartridge | — | 1983-05-24 |
| 4330280 | Ejector holder for capsule-like cartridge | Emery W. Dougherty | 1982-05-18 |