Issued Patents All Time
Showing 76–100 of 141 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |
| 10006257 | Centralizer for downhole probes | Justin C. Logan, Patrick R. Derkacz | 2018-06-26 |
| 10006280 | Downhole pocket electronics | David A. Switzer | 2018-06-26 |
| 9995134 | Electromagnetic pulse downhole telemetry | Jili Liu, Mingdong Xu, David A. Switzer | 2018-06-12 |
| 9988897 | Optimizing electromagnetic telemetry transmissions | Jili Liu, Mingdong Xu, David A. Switzer, Monica E. Varga, Mojtaba Kazemi Miraki | 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 |
| 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 |
| 9976414 | Downhole probe assembly with bluetooth device | David A. Switzer, Jili Liu, Patrick R. Derkacz | 2018-05-22 |
| 9976415 | Electromagnetic telemetry system with compensation for drilling fluid characteristics | Justin C. Logan, 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 |
| 9903198 | Downhole electromagnetic and mud pulse telemetry apparatus | David A. Switzer, Jili Liu, Mingdong Xu | 2018-02-27 |
| 9874092 | Fluid pressure pulse generator for a downhole telemetry tool | Gavin Gaw-Wae Lee, Justin C. Logan, David A. Switzer | 2018-01-23 |
| 9874083 | Downhole probes and systems | Patrick R. Derkacz, Justin C. Logan, David A. Switzer | 2018-01-23 |
| 9863239 | Selecting transmission frequency based on formation properties | Patrick R. Derkacz, Justin C. Logan | 2018-01-09 |
| 9850722 | Universal downhole probe system | Justin C. Logan, David A. Switzer, Patrick R. Derkacz | 2017-12-26 |
| 9850751 | Axially-supported downhole probes | Justin C. Logan, David A. Switzer, Patrick R. Derkacz | 2017-12-26 |
| 9840910 | Fluid pressure pulse generator for a downhole telemetry tool | Gavin Gaw-Wae Lee, Justin C. Logan | 2017-12-12 |
| 9840909 | Flow bypass sleeve for a fluid pressure pulse generator of a downhole telemetry tool | Gavin Gaw-Wae Lee, Justin C. Logan | 2017-12-12 |