| 12416225 |
Density-based flow control configuration, method, and system |
Ping Duan, Guijun Deng, Zhihui Zhang, John Wakefield |
2025-09-16 |
|
| 12410680 |
Fluid density valve, method, and system |
Bin Zhu, Guijun Deng, Zhihui Zhang, Ronnie D. Russell, John Wakefield |
2025-09-09 |
|
| 12398620 |
Density based inflow control device, method, and system |
Ronnie D. Russell, Guijun Deng, Rowland Moffatt, Meghana Annamalai Dhandayuthapani |
2025-08-26 |
|
| 12326071 |
Inflow control device, method and system |
Zhihui Zhang, Guijun Deng, Bin Zhu, Rowland Moffatt, John Wakefield |
2025-06-10 |
|
| 12276173 |
Seal tool with temperature control material, method, and system |
Guijun Deng, Anil K. Sadana, Anton Kovalchuk, Ping Duan, Jason M. Harper |
2025-04-15 |
|
| 12258837 |
Borehole sealing with temperature control, method, and system |
Guijun Deng, Anil K. Sadana, Anton Kovalchuk, Ping Duan, Jason M. Harper |
2025-03-25 |
|
| 12123276 |
Borehole sealing with temperature control, method, and system |
Guijun Deng, Anil K. Sadana, Anton Kovalchuk, Ping Duan, Jason M. Harper |
2024-10-22 |
$35,519,000 |
| 11702903 |
Actuator, method and system |
Daniel Sequera, John Vu |
2023-07-18 |
$68,261,000 |
| 11624246 |
Pass-through tapered nose tool |
Christopher R. Hern, Shane Harris, Kirby G. Schrader, Marc Samuelson, Scott Christopher |
2023-04-11 |
$65,239,000 |
| 11555359 |
Pass-through tapered nose tool |
Christopher R. Hern, Shane Harris, Kirby G. Schrader, Marc Samuelson, Scott Christopher |
2023-01-17 |
$80,661,000 |
| 11512554 |
Segmented backup ring, system and method |
Guijun Deng, Kevin Holmes, Keith J. Murphy |
2022-11-29 |
$41,678,000 |
| 11465229 |
Frequency modulation for magnetic pressure pulse tool |
Carlos A. Prieto, James Joseph Freeman |
2022-10-11 |
$40,935,000 |
| 11280162 |
Power generation using pressure differential between a tubular and a borehole annulus |
Andrew Duggan, Christopher R. Hern |
2022-03-22 |
$43,604,000 |
| 11142999 |
Downhole power generation using pressure differential |
Andrew Duggan, Christopher R. Hern |
2021-10-12 |
$19,933,000 |
| 11014191 |
Frequency modulation for magnetic pressure pulse tool |
Carlos A. Prieto, James Joseph Freeman |
2021-05-25 |
$25,976,000 |
| 10822929 |
Electrohydraulic movement of downhole components and method |
Carlos A. Prieto, Christopher R. Hern |
2020-11-03 |
$4,148,000 |
| 10801283 |
Magnetic pulse actuation arrangement for downhole tools and method |
Carlos A. Prieto, Christopher R. Hern |
2020-10-13 |
$14,486,000 |
| 10626705 |
Magnetic pulse actuation arrangement having layer and method |
Carlos A. Prieto, Christopher R. Hern |
2020-04-21 |
|
| 10596655 |
Magnetic pulse actuation arrangement for downhole tools and method |
Carlos A. Prieto, James Joseph Freeman, John K. Wakefield, Partha Ganguly |
2020-03-24 |
$4,907,000 |
| 10352120 |
Liquid fuel powered packer setting tool |
James C. Doane |
2019-07-16 |
$6,241,000 |
| 10352119 |
Hydrocarbon powered packer setting tool |
James C. Doane |
2019-07-16 |
$6,241,000 |
| 10202818 |
Expandable sealing assembly and downhole system |
Christopher R. Hern, Guijun Deng |
2019-02-12 |
$14,785,000 |
| 10087702 |
Plug releaser and method of limiting pressure differential across plugs |
Christopher R. Hern, Matthew J. Krueger |
2018-10-02 |
$7,068,000 |
| 10012046 |
Bi-directional locking liner hanger with pressure balanced setting mechanism |
Robert Pena |
2018-07-03 |
$11,497,000 |
| 9850725 |
One trip interventionless liner hanger and packer setting apparatus and method |
Mario Moreno, James M. Fraser, Sidney K. Smith, Jr., Abbie Palmieri, Matthew J. Kruger +2 more |
2017-12-26 |
$15,914,000 |
