Issued Patents All Time
Showing 51–75 of 106 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9909369 | Electromagnetic telemetry gap sub assembly with insulating collar | Aaron W. Logan, Daniel W. Ahmoye, Justin C. Logan, Patrick R. Derkacz, Mojtaba Kazemi Miraki | 2018-03-06 |
| 9903198 | Downhole electromagnetic and mud pulse telemetry apparatus | Jili Liu, Aaron W. Logan, Mingdong Xu | 2018-02-27 |
| 9874092 | Fluid pressure pulse generator for a downhole telemetry tool | Gavin Gaw-Wae Lee, Justin C. Logan, Aaron W. Logan | 2018-01-23 |
| 9874083 | Downhole probes and systems | Aaron W. Logan, Patrick R. Derkacz, Justin C. Logan | 2018-01-23 |
| 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 |