Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4892481 | Dental composite carrier and composite package | Douglas D. Bennett | 1990-01-09 |
| 4776704 | Mixing and dispensing syringe | Richard E. Welsh, Paul D. Hammesfahr | 1988-10-11 |
| 4767325 | Dental composite carrier and composite package | Douglas D. Bennett | 1988-08-30 |
| 4659327 | Multiple dosage syringe | Douglas D. Bennett, Richard E. Welsh, Paul D. Hammesfahr, Earl C. Francis | 1987-04-21 |