Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872639 | Pilot-control safety valve | — | 1989-10-10 |
| 4802505 | Fluid control valve | Serge J. Boulogne, Gerald Schaumburg | 1989-02-07 |
| 4522369 | Pilot-controlled safety valve | — | 1985-06-11 |