Issued Patents 2018
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10156102 | Gap assembly for EM data telemetry | Patrick R. Derkacz, Justin C. Logan | 2018-12-18 |
| 10151196 | Downhole telemetry | David A. Switzer, Jili Liu, Justin C. Logan | 2018-12-11 |
| 10125904 | Sealing gasket and method for creating same | Hasan Alper Hepguvendik, Justin C. 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, Justin C. Logan, Jili Liu, David A. Switzer, Robert A. Harris +2 more | 2018-11-06 |
| 10113412 | Axially-supported downhole probes | Justin C. Logan, David A. Switzer | 2018-10-30 |
| 10078154 | Downhole system with integrated backup sensors | Patrick R. Derkacz, Justin C. Logan, Barry Daniel Buternowsky, Mojtaba Kazemi Miraki | 2018-09-18 |
| 10066475 | Back up directional and inclination sensors and method of operating same | David A. Switzer, Jili Liu, Mojtaba Kazemi Miraki | 2018-09-04 |
| 10066481 | Downhole electromagnetic and mud pulse telemetry apparatus | David A. Switzer, Jili Liu, Mingdong Xu | 2018-09-04 |
| 10044338 | Mutually induced filters | Sunil Kapoor, Hyungjoon Kim, Yaswanth Rangineni, Karl Leeser | 2018-08-07 |
| 10030501 | Downhole probe centralizer | Justin C. Logan, Patrick R. Derkacz | 2018-07-24 |
| 10006280 | Downhole pocket electronics | David A. Switzer | 2018-06-26 |
| 10006257 | Centralizer for downhole probes | Justin C. Logan, Patrick R. Derkacz | 2018-06-26 |
| 9995134 | Electromagnetic pulse downhole telemetry | Jili Liu, Mingdong Xu, David A. Switzer | 2018-06-12 |
| 9988896 | Method and system for transmitting a data frame of an electromagnetic telemetry signal to or from a downhole location | David A. Switzer, Jili Liu, Mingdong Xu | 2018-06-05 |
| 9988855 | Methods and apparatus for generating electromagnetic telemetry signals | Daniel W. Ahmoye, David A. Switzer, Justin C. Logan, Patrick R. Derkacz, Mojtaba Kazemi Miraki | 2018-06-05 |
| 9988897 | Optimizing electromagnetic telemetry transmissions | Jili Liu, Mingdong Xu, David A. Switzer, Monica E. Varga, Mojtaba Kazemi Miraki | 2018-06-05 |
| 9976415 | Electromagnetic telemetry system with compensation for drilling fluid characteristics | Justin C. Logan, Patrick R. Derkacz | 2018-05-22 |
| 9976414 | Downhole probe assembly with bluetooth device | David A. Switzer, Jili Liu, Patrick R. Derkacz | 2018-05-22 |
| 9951611 | Downhole telemetry | David A. Switzer, Jili Liu, Justin C. Logan | 2018-04-24 |
| 9951603 | Methods and apparatus for downhole probes | Jili Liu, Patrick R. Derkacz, Justin C. Logan, David A. Switzer | 2018-04-24 |
| 9945227 | Mixed-mode telemetry systems and methods | Justin C. Logan, Mojtaba Kazemi Miraki, Daniel W. Ahmoye, Patrick R. Derkacz, Barry Daniel Buternowsky | 2018-04-17 |
| 9932776 | Pinned electromagnetic telemetry gap sub assembly | Justin C. Logan, Patrick R. Derkacz, David A. Switzer | 2018-04-03 |
| 9920622 | Transmitting data across electrically insulating gaps in a drill string | David A. Switzer, Jili Liu, Mojtaba Kazemi Miraki | 2018-03-20 |
| 9915146 | Fluid pressure pulse generating apparatus with primary seal assembly, back up seal assembly and pressure compensation device and method of operating same | Justin C. Logan, David A. Switzer | 2018-03-13 |
| 9909369 | Electromagnetic telemetry gap sub assembly with insulating collar | Daniel W. Ahmoye, David A. Switzer, Justin C. Logan, Patrick R. Derkacz, Mojtaba Kazemi Miraki | 2018-03-06 |