Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 11702903 | Actuator, method and system | Daniel Sequera, John Vu | 2023-07-18 |
| 11624246 | Pass-through tapered nose tool | Christopher R. Hern, Shane Harris, Kirby G. Schrader, Marc Samuelson, Scott Christopher | 2023-04-11 |
| 11555359 | Pass-through tapered nose tool | Christopher R. Hern, Shane Harris, Kirby G. Schrader, Marc Samuelson, Scott Christopher | 2023-01-17 |
| 11512554 | Segmented backup ring, system and method | Guijun Deng, Kevin Holmes, Keith J. Murphy | 2022-11-29 |
| 11465229 | Frequency modulation for magnetic pressure pulse tool | Carlos A. Prieto, James Joseph Freeman | 2022-10-11 |
| 11280162 | Power generation using pressure differential between a tubular and a borehole annulus | Andrew Duggan, Christopher R. Hern | 2022-03-22 |
| 11142999 | Downhole power generation using pressure differential | Andrew Duggan, Christopher R. Hern | 2021-10-12 |
| 11014191 | Frequency modulation for magnetic pressure pulse tool | Carlos A. Prieto, James Joseph Freeman | 2021-05-25 |
| 10822929 | Electrohydraulic movement of downhole components and method | Carlos A. Prieto, Christopher R. Hern | 2020-11-03 |
| 10801283 | Magnetic pulse actuation arrangement for downhole tools and method | Carlos A. Prieto, Christopher R. Hern | 2020-10-13 |
| 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 |
| 10352119 | Hydrocarbon powered packer setting tool | James C. Doane | 2019-07-16 |
| 10352120 | Liquid fuel powered packer setting tool | James C. Doane | 2019-07-16 |
| 10202818 | Expandable sealing assembly and downhole system | Christopher R. Hern, Guijun Deng | 2019-02-12 |
| 10087702 | Plug releaser and method of limiting pressure differential across plugs | Christopher R. Hern, Matthew J. Krueger | 2018-10-02 |
| 10012046 | Bi-directional locking liner hanger with pressure balanced setting mechanism | Robert Pena | 2018-07-03 |
| 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 |