| 12378828 |
Slip apparatus and methods of using same |
Mark Charles Taggart, Todd McCorriston |
2025-08-05 |
| 12060752 |
Floor wrench for a drilling rig |
Todd McCorriston, Patrick J. McDougall, Mark Charles Taggart |
2024-08-13 |
| 11608694 |
Floor wrench for a drilling rig |
Todd McCorriston, Patrick J. McDougall, Mark Charles Taggart |
2023-03-21 |
| 11560883 |
Rod connector and method |
Stephan Maras, Earl Foote, Sumit Shah, Michael Stankovsky |
2023-01-24 |
| 11060359 |
Polished rod rotator with height adjuster |
Todd McCorriston, Craig Simmers |
2021-07-13 |
| 11028888 |
Self-amplifying safety brake |
Radu Gnasienco, Russell Turnbull, Kevin Batalha |
2021-06-08 |
| 10718171 |
Modified die block for drilling rig floor wrench |
Todd McCorriston, Patrick J. McDougall |
2020-07-21 |
| 10605014 |
Polished rod rotator with height adjuster |
Todd McCorriston, Craig Simmers |
2020-03-31 |
| 10557321 |
Spinning torque wrench |
Radu Gnasienco, Russell Turnbull, Kevin Batahla |
2020-02-11 |
| 10538976 |
Floor wrench for a drilling rig |
Todd McCorriston, Patrick J. McDougall |
2020-01-21 |
| 10309169 |
Spinner wrench for a drilling rig |
Todd McCorriston, Patrick J. McDougall |
2019-06-04 |
| 10247279 |
Integrated roller-gearbox for spinner wrench |
Todd McCorriston, Patrick J. McDougall |
2019-04-02 |
| 8968133 |
Dynamic ratio speed increaser for windmills and similar applications |
Russell Turnbull, Daniel POPA, Soegi Hartono |
2015-03-03 |
| 8943950 |
Reciprocating pump flow control |
Soegi Hartono, Russell Turnbull |
2015-02-03 |
| 8888649 |
Dynamic reduction-ratio hoisting device |
Russell Turnbull, Daniel POPA, Soegi Hartono |
2014-11-18 |
| 8535197 |
Speed changer assembly |
— |
2013-09-17 |
| 8133147 |
Clutch |
John Robert Colbourne |
2012-03-13 |
| 7293543 |
Integrated speed changer assembly |
— |
2007-11-13 |