Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11391304 | Rotary actuator | John David Sangster | 2022-07-19 |
| 11047206 | Valve | John David Sangster | 2021-06-29 |
| 10801287 | Gate valve | John David Sangster | 2020-10-13 |
| 10683721 | Test tree and actuator | John David Sangster | 2020-06-16 |
| 10267342 | Rotary actuator | John David Sangster | 2019-04-23 |
| 10246969 | Valve apparatus | John David Sangster | 2019-04-02 |
| 8403293 | Axially energisable ball valve | Jeffrey Charles Edwards | 2013-03-26 |
| 8066075 | Completion suspension valve system | Jeffrey Charles Edwards | 2011-11-29 |
| 7963339 | Bearing mounted ball valve and method of use | Jeffrey Charles Edwards | 2011-06-21 |
| 7779918 | Wellbore control device | John David Sangster | 2010-08-24 |
| 7331394 | Autonomous well intervention system | Jeffrey Charles Edwards | 2008-02-19 |
| 6708946 | Ball valve | Jeffrey Charles Edwards | 2004-03-23 |