Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5228855 | Mortar training ammunition device having independently rotatable vent closure rings | — | 1993-07-20 |
| 4773164 | Self-aligning caliber bar | Douglas P. Taylor, David A. Lee | 1988-09-27 |
| 4328755 | Hand grenade with wave-forming means between chambers | — | 1982-05-11 |