Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12281565 | Scaling and plugging detection in artificial lift application | Frank Corredor, Clara Susana Tandazo Castro, Hans Sjerps | 2025-04-22 |
| 12276284 | Electric submersible pump (ESP) assembly shaft coupling with axial load handling capability | Dezhi Zheng, Donn J. Brown, Wenjie Jie GUANG, Jason Hill | 2025-04-15 |
| 11821430 | Oil transport structure in an electric motor of an electric submersible pump (ESP) assembly | Dezhi Zheng, Yu Sun, Donn J. Brown | 2023-11-21 |
| 11384613 | Wellbore dart with separable and expandable tool activator | Bo Gao, Lonnie Carl Helms, Aniruddha D. Gadre, Gary Joe Makowiecki | 2022-07-12 |
| 11313202 | Systems and methods for controlling fluid flow in a wellbore using a switchable downhole crossover tool | Bo Gao, Lonnie Carl Helms, Aniruddha D. Gadre, Gary Joe Makowiecki | 2022-04-26 |
| 11008838 | Switchable crossover tool with hydraulic transmission | Bo Gao, Lonnie Carl Helms, Aniruddha D. Gadre, Gary Joe Makowiecki | 2021-05-18 |
| 10914133 | Switchable crossover tool with rotatable chamber | Bo Gao, Lonnie Carl Helms, Aniruddha D. Gadre, Gary Joe Makowiecki | 2021-02-09 |
| 10808518 | Cementing indication system | Bo Gao, John Paul Bir Singh, Walmy Cuello Jimenez | 2020-10-20 |
| 10648286 | Methods for cementing a well using a switchable crossover device | Bo Gao, Lonnie Carl Helms, Aniruddha D. Gadre, Gary Joe Makowiecki | 2020-05-12 |
| 10557329 | Systems and methods for controlling fluid flow in a wellbore using a switchable downhole crossover tool with rotatable sleeve | Bo Gao, Lonnie Carl Helms, Aniruddha D. Gadre, Gary Joe Makowiecki | 2020-02-11 |
| 10344558 | Systems and method for reverse cementing | Bo Gao, John Paul Bir Singh, Walmy Cuello Jimenez | 2019-07-09 |