Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5711510 | Pipeline valve apparatus | — | 1998-01-27 |
| 5553830 | Pipeline valve apparatus | — | 1996-09-10 |
| 5325888 | Pipeline valve transmission apparatus | — | 1994-07-05 |
| 5203539 | Pipeline valve apparatus | — | 1993-04-20 |
| 5170693 | Rotary actuator device with a free floating piston | — | 1992-12-15 |
| 5160118 | Pipeline valve apparatus | — | 1992-11-03 |