Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12331608 | Linear escapement for a subterranean valve | — | 2025-06-17 |
| 12049794 | Linear escapement for a subterranean valve | — | 2024-07-30 |
| 11448326 | Double acting boost arrangement | — | 2022-09-20 |
| 11414957 | Ball valve | Bipinkumar Singh | 2022-08-16 |
| 11346183 | Multi-piston activation mechanism | Ryan David Mair | 2022-05-31 |
| 11339628 | Hydraulic line balance manifold | — | 2022-05-24 |
| 11203916 | Multi-ball valve assembly | — | 2021-12-21 |
| 10794157 | Downhole remote trigger activation device for VLH big bore and mono bore configured running tools with programming logic | Gary Allen Kohn, Emile Edmund Sevadjian, Irvine Cardno Brown, Michael John Christie | 2020-10-06 |
| 10415347 | Downhole tool having an axially rotatable valve member | — | 2019-09-17 |
| 9677381 | Downhole hydraulic control line | — | 2017-06-13 |
| 9518446 | Ball valve with sealing element | Irvine Cardno Brown | 2016-12-13 |
| 9482074 | Valve actuating apparatus | Gary H. Smith | 2016-11-01 |
| 9376889 | Downhole valve assembly | Gary H. Smith | 2016-06-28 |
| 9376891 | Valve actuating apparatus | Gary H. Smith | 2016-06-28 |
| 9316088 | Downhole contingency apparatus | Gary H. Smith | 2016-04-19 |
| 9045962 | Downhole apparatus having a rotating valve member | Michael John Christie, Stuart Gordon, Irvine Cardno Brown | 2015-06-02 |
| 8677660 | Support bracket for a tracer wire conduit at a riser pipe of an underground pipeline | — | 2014-03-25 |
| 8602107 | Downhole hydraulic control line | — | 2013-12-10 |
| 8602112 | Control apparatus for downhole valves | — | 2013-12-10 |
| 8522886 | Downhole apparatus having a rotating valve member | Michael John Christie, Stuart Gordon, Irvine Cardno Brown | 2013-09-03 |
| 8327929 | Support assembly for downhole tool, downhole tool and method | William S. Burnett | 2012-12-11 |
| 8316953 | Valve | Irvine Cardno Brown | 2012-11-27 |
| 8276678 | Support assembly for a deformable sealing element for a downhole tool | William S. Burnett | 2012-10-02 |
| 8240376 | Pressure equalising devices | Stuart Gordon, Irvine Cardno Brown | 2012-08-14 |
| 8201622 | Protection sleeve | Irvine Cardno Brown | 2012-06-19 |