Issued Patents All Time
Showing 26–50 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10598000 | Methods and apparatus for downhole probes | Jili Liu, Patrick R. Derkacz, Aaron W. Logan, David A. Switzer | 2020-03-24 |
| 10533413 | Method and apparatus for determining rotor position in a fluid pressure pulse generator | Aaron W. Logan | 2020-01-14 |
| 10513892 | Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling | Aaron W. Logan, Patrick R. Derkacz, David A. Switzer | 2019-12-24 |
| 10508538 | Fluid pressure pulse generator for a downhole telemetry tool | Luke Anthony Stack, Aaron W. Logan, Gavin Gaw-Wae Lee | 2019-12-17 |
| 10494879 | Universal downhole probe system | Aaron W. Logan, David A. Switzer, Patrick R. Derkacz | 2019-12-03 |
| 10473804 | Seal and seal assembly for a fluid pressure pulse generating tool | Gavin Gaw-Wae Lee, Aaron W. Logan | 2019-11-12 |
| 10422921 | Downhole system with integrated backup sensors | Aaron W. Logan, Patrick R. Derkacz, Barry Daniel Buternowsky, Mojtaba Kazemi Miraki | 2019-09-24 |
| 10400520 | Electromagnetic telemetry gap sub assembly with insulating collar | Aaron W. Logan, Daniel W. Ahmoye, David A. Switzer, Patrick R. Derkacz, Mojtaba Kazemi Miraki | 2019-09-03 |
| 10358906 | Downhole probe centralizer | Aaron W. Logan, Patrick R. Derkacz | 2019-07-23 |
| 10352151 | Downhole electronics carrier | Patrick R. Derkacz, Aaron W. Logan | 2019-07-16 |
| 10352111 | Drill collar with integrated probe centralizer | Aaron W. Logan, Patrick R. Derkacz, David A. Switzer | 2019-07-16 |
| 10316652 | Downhole telemetry tool with adaptive frequency transmitter | Gavin Gaw-Wae Lee, Kurtis West, Luke Anthony Stack, Aaron W. Logan | 2019-06-11 |
| 10301891 | Jig for coupling or uncoupling drill string sections with detachable couplings and related methods | Patrick R. Derkacz, Aaron W. Logan | 2019-05-28 |
| 10301887 | Drill string sections with interchangeable couplings | Patrick R. Derkacz, Aaron W. Logan | 2019-05-28 |
| 10301931 | Measuring while drilling systems, method and apparatus | Patrick R. Derkacz, Aaron W. Logan, Kurtis West, Jili Liu, Barry Daniel Buternowsky | 2019-05-28 |
| 10295060 | Method for sealing a gap sub assembly | Hasan Alper Hepguvendik, Aaron W. Logan, Gavin Gaw-Wae Lee, Luke Anthony Stack, Mojtaba Kazemi Miraki +2 more | 2019-05-21 |
| 10287871 | Axially-supported downhole probes | Aaron W. Logan, David A. Switzer, Patrick R. Derkacz | 2019-05-14 |
| 10280741 | Optimizing downhole data communication with at bit sensors and nodes | Patrick R. Derkacz, Aaron W. Logan, Jili Liu, David A. Switzer, Robert A. Harris +2 more | 2019-05-07 |
| 10253621 | Integrated downhole system with plural telemetry subsystems | Aaron W. Logan, David A. Switzer, Jili Liu, Mingdong Xu | 2019-04-09 |
| 10215020 | Mud motor with integrated MWD system | Patrick R. Derkacz, Aaron W. Logan | 2019-02-26 |
| 10214971 | Apparatus for angular alignment of downhole sensors with high side in directional drilling | Aaron W. Logan, Patrick R. Derkacz, David A. Switzer | 2019-02-26 |
| 10180059 | Telemetry tool with a fluid pressure pulse generator | Gavin Gaw-Wae Lee, Aaron W. Logan, Kurtis West | 2019-01-15 |
| 10167683 | Centralizer for downhole probes | Aaron W. Logan, Patrick R. Derkacz | 2019-01-01 |
| 10156102 | Gap assembly for EM data telemetry | Patrick R. Derkacz, Aaron W. Logan | 2018-12-18 |
| 10151196 | Downhole telemetry | Aaron W. Logan, David A. Switzer, Jili Liu | 2018-12-11 |