Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4444224 | Mechanized orifice fitting | — | 1984-04-24 |
| 4436280 | Valve actuator mechanism for lift-turn type valves | — | 1984-03-13 |
| 4390171 | Compression spring capsule | — | 1983-06-28 |
| 4340088 | Pressure balanced safety valve for wells and flow lines | — | 1982-07-20 |
| 4331315 | Actuatable safety valve for wells and flowlines | — | 1982-05-25 |