Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862804 | Implosion shaped charge perforator | Manmohan S. Chawla, Nicholas Collier | 1989-09-05 |
| 4523650 | Explosive safe/arm system for oil well perforating guns | Gerald B. McClure, William A. McPhee | 1985-06-18 |