Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5078177 | Pop-type relief-valve construction | Peter A. Tartaglia | 1992-01-07 |
| 4897959 | Jail cell lock mechanism | — | 1990-02-06 |
| 4484285 | Load-transfer mechanism | William I. deVersterre | 1984-11-20 |
| 4481801 | Load-transfer mechanism | William I. deVersterre | 1984-11-13 |
| 4399836 | Self-contained closed-loop electrically operated valve | William I. de Versterre | 1983-08-23 |