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Head covering device providing filtered intake and exhaust air |
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| 12185787 |
Personal air filtering device with automatic control of air movement |
Michael Hall, David R. Hall, Chandler Flinders, Jacob Dean, Anthony E. Pullen +1 more |
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| 12075874 |
Personal air filtration system with smart app |
Michael Hall, David R. Hall, Chandler Flinders, Jacob Dean, Vicente Oliveira +2 more |
2024-09-03 |
| 11639648 |
Downhole turbine assembly |
David R. Hall, Jonathan Marshall |
2023-05-02 |
| 11608719 |
Controlling fluid flow through a valve |
David R. Hall, Jonathan Marshall, David C. Hoyle, Malcolm R. Taylor |
2023-03-21 |
| 11015406 |
Sensor activated downhole cutting tool |
Jacques Orban, R. Craig Boswell, Scott Richard Woolston |
2021-05-25 |
| 10947787 |
Underreamer for increasing a wellbore diameter |
Nathan E. Fuller, Jonathan Marshall, Jacques Orban, R. Craig Boswell |
2021-03-16 |
| 10927647 |
Systems and methods for directing fluid flow |
David R. Hall, Jonathan Marshall, David C. Hoyle, Malcolm R. Taylor |
2021-02-23 |
| 10907448 |
Downhole turbine assembly |
David R. Hall, Jonathan Marshall |
2021-02-02 |
| 10439474 |
Turbines and methods of generating electricity |
David R. Hall, Jonathan Marshall |
2019-10-08 |
| 10214980 |
Measuring fluid properties in a downhole tool |
Jacques Orban, R. Craig Boswell, Scott Richard Woolston |
2019-02-26 |
| 10190368 |
Underreamer for increasing a wellbore diameter |
Nathan E. Fuller, R. Craig Boswell, Jacques Orban, Jonathan Marshall |
2019-01-29 |
| 10113399 |
Downhole turbine assembly |
David R. Hall, Jonathan Marshall |
2018-10-30 |
| 9556682 |
Underreamer for increasing a wellbore diameter |
Nathan E. Fuller, Craig Boswell, Jacques Orban, Jonathan Marshall |
2017-01-31 |
