Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D477509 | Multi-purpose pliers | David S. Allen | 2003-07-22 |
| 5950265 | Multiple purpose pocket tool | David S. Allen, Richard Joswick, Roy A. Gonzalez, Paul J. Rusyniak | 1999-09-14 |
| 5091605 | Fire-proof seals | — | 1992-02-25 |
| 4542640 | Selective gas detection and measurement system | — | 1985-09-24 |