Issued Patents All Time
Showing 51–75 of 92 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10125904 | Sealing gasket and method for creating same | Hasan Alper Hepguvendik, Aaron W. Logan, Gavin Gaw-Wae Lee, Luke Anthony Stack, Mojtaba Kazemi Miraki +2 more | 2018-11-13 |
| 10119393 | 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 | 2018-11-06 |
| 10113412 | Axially-supported downhole probes | Aaron W. Logan, David A. Switzer | 2018-10-30 |
| 10078154 | Downhole system with integrated backup sensors | Aaron W. Logan, Patrick R. Derkacz, Barry Daniel Buternowsky, Mojtaba Kazemi Miraki | 2018-09-18 |
| 10030501 | Downhole probe centralizer | Aaron W. Logan, Patrick R. Derkacz | 2018-07-24 |
| 10006257 | Centralizer for downhole probes | Aaron W. Logan, Patrick R. Derkacz | 2018-06-26 |
| 9988855 | Methods and apparatus for generating electromagnetic telemetry signals | Aaron W. Logan, Daniel W. Ahmoye, David A. Switzer, Patrick R. Derkacz, Mojtaba Kazemi Miraki | 2018-06-05 |
| 9976415 | Electromagnetic telemetry system with compensation for drilling fluid characteristics | Aaron W. Logan, Patrick R. Derkacz | 2018-05-22 |
| 9951603 | Methods and apparatus for downhole probes | Jili Liu, Patrick R. Derkacz, Aaron W. Logan, David A. Switzer | 2018-04-24 |
| 9951611 | Downhole telemetry | Aaron W. Logan, David A. Switzer, Jili Liu | 2018-04-24 |
| 9945227 | Mixed-mode telemetry systems and methods | Mojtaba Kazemi Miraki, Aaron W. Logan, Daniel W. Ahmoye, Patrick R. Derkacz, Barry Daniel Buternowsky | 2018-04-17 |
| 9932776 | Pinned electromagnetic telemetry gap sub assembly | Aaron W. Logan, Patrick R. Derkacz, David A. Switzer | 2018-04-03 |
| 9915146 | Fluid pressure pulse generating apparatus with primary seal assembly, back up seal assembly and pressure compensation device and method of operating same | Aaron W. Logan, David A. Switzer | 2018-03-13 |
| 9909369 | Electromagnetic telemetry gap sub assembly with insulating collar | Aaron W. Logan, Daniel W. Ahmoye, David A. Switzer, Patrick R. Derkacz, Mojtaba Kazemi Miraki | 2018-03-06 |
| 9874083 | Downhole probes and systems | Aaron W. Logan, Patrick R. Derkacz, David A. Switzer | 2018-01-23 |
| 9874092 | Fluid pressure pulse generator for a downhole telemetry tool | Gavin Gaw-Wae Lee, Aaron W. Logan, David A. Switzer | 2018-01-23 |
| 9863239 | Selecting transmission frequency based on formation properties | Patrick R. Derkacz, Aaron W. Logan | 2018-01-09 |
| 9850722 | Universal downhole probe system | Aaron W. Logan, David A. Switzer, Patrick R. Derkacz | 2017-12-26 |
| 9850751 | Axially-supported downhole probes | Aaron W. Logan, David A. Switzer, 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, David A. Switzer | 2017-12-12 |
| 9840909 | Flow bypass sleeve for a fluid pressure pulse generator of a downhole telemetry tool | Gavin Gaw-Wae Lee, Aaron W. Logan | 2017-12-12 |
| 9840910 | Fluid pressure pulse generator for a downhole telemetry tool | Gavin Gaw-Wae Lee, Aaron W. Logan | 2017-12-12 |
| 9828852 | Fluid pressure pulse generator and method of using same | Aaron W. Logan, David A. Switzer, Jili Liu | 2017-11-28 |
| 9828854 | Mud pulse telemetry apparatus with a pressure transducer and method of operating same | Aaron W. Logan, Jili Liu, David A. Switzer | 2017-11-28 |
| 9732608 | Downhole telemetry | Aaron W. Logan, David A. Switzer, Jili Liu | 2017-08-15 |