| 9850751 |
Axially-supported downhole probes |
Aaron W. Logan, Justin C. Logan, Patrick R. Derkacz |
2017-12-26 |
| 9850722 |
Universal downhole probe system |
Aaron W. Logan, Justin C. Logan, Patrick R. Derkacz |
2017-12-26 |
| 9840879 |
Rotary locking sub for angular alignment of downhole sensors with high side in directional drilling |
Aaron W. Logan, Patrick R. Derkacz, Justin C. Logan |
2017-12-12 |
| 9828854 |
Mud pulse telemetry apparatus with a pressure transducer and method of operating same |
Aaron W. Logan, Jili Liu, Justin C. Logan |
2017-11-28 |
| 9828852 |
Fluid pressure pulse generator and method of using same |
Aaron W. Logan, Justin C. Logan, Jili Liu |
2017-11-28 |
| 9771792 |
Method and apparatus for multi-channel downhole electromagnetic telemetry |
Mingdong Xu, Jili Liu, Aaron W. Logan |
2017-09-26 |
| 9765615 |
Optimizing electromagnetic telemetry transmissions |
Jili Liu, Mingdong Xu, Aaron W. Logan, Monica E. Varga, Mojtaba Kazemi Miraki |
2017-09-19 |
| 9752429 |
Downhole electromagnetic and mud pulse telemetry apparatus |
Jili Liu, Aaron W. Logan, Mingdong Xu |
2017-09-05 |
| 9732608 |
Downhole telemetry |
Aaron W. Logan, Jili Liu, Justin C. Logan |
2017-08-15 |
| 9719345 |
Electromagnetic communications system and method for a drilling operation |
Jili Liu, Mingdong Xu, Mojtaba Kazemi Miraki, Aaron W. Logan |
2017-08-01 |
| 9714569 |
Mud pulse telemetry apparatus with a pressure transducer and method of operating same |
Aaron W. Logan, Jili Liu, Justin C. Logan |
2017-07-25 |
| 9708903 |
Back up directional and inclination sensors and method of operating same |
Aaron W. Logan, Jili Liu, Mojtaba Kazemi Miraki |
2017-07-18 |
| 9670771 |
Methods and apparatus for generating electromagnetic telemetry signals |
Aaron W. Logan, Daniel W. Ahmoye, Justin C. Logan, Patrick R. Derkacz, Mojtaba Kazemi Miraki |
2017-06-06 |
| 9664038 |
Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location |
Jili Liu, Mingdong Xu, Aaron W. Logan |
2017-05-30 |
| 9664037 |
Detection of downhole data telemetry signals |
Aaron W. Logan, Daniel W. Ahmoye, Jili Liu |
2017-05-30 |
| 9644471 |
Mounting and component holder apparatuses and assemblies for holding rigid components |
Aaron W. Logan, Jili Liu, Justin C. Logan |
2017-05-09 |
| 9617849 |
Fluid pressure pulse generator with low and high flow modes for wellbore telemetry and method of using same |
Aaron W. Logan, Justin C. Logan, Jili Liu |
2017-04-11 |
| 9612845 |
Wireless initialization of electronic devices for first time use |
Riyadth Al-Kazily |
2017-04-04 |
| 9605535 |
Integrated downhole system with plural telemetry subsystems |
Aaron W. Logan, Jili Liu, Justin C. Logan, Mingdong Xu |
2017-03-28 |
| 9587441 |
Apparatus and method for coaxially joining components to resist relative rotational and longitudinal movement |
Aaron W. Logan, Patrick R. Derkacz, Justin C. Logan, Daniel W. Ahmoye, Darcy A. Downs +1 more |
2017-03-07 |
| 9574441 |
Downhole telemetry signal modulation using pressure pulses of multiple pulse heights |
Jili Liu, Mingdong Xu, Aaron W. Logan |
2017-02-21 |
| 9567835 |
System and method for managing batteries for use in a downhole drilling application |
Jili Liu, Xia PAN, Aaron W. Logan |
2017-02-14 |
