Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4767326 | Cartridge container and ejector piston therefor | Douglas D. Bennett | 1988-08-30 |
| 4659327 | Multiple dosage syringe | Douglas D. Bennett, Richard E. Welsh, Paul D. Hammesfahr, Thomas V. Kopunek | 1987-04-21 |