| 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 |
| 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 |
| 9951611 |
Downhole telemetry |
Aaron W. Logan, David A. Switzer, Jili Liu |
2018-04-24 |
| 9951603 |
Methods and apparatus for downhole probes |
Jili Liu, Patrick R. Derkacz, Aaron W. Logan, David A. Switzer |
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 |