Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7170423 | Electromagnetic MWD telemetry system incorporating a current sensing transformer | Macmillan M. Wisler, Wu Jian-Qun | 2007-01-30 |
| 7145473 | Electromagnetic borehole telemetry system incorporating a conductive borehole tubular | Macmillan M. Wisler, Hugh E. Hall, Jr. | 2006-12-05 |
| 7126492 | Electromagnetic borehole telemetry system incorporating a conductive borehole tubular | Macmillan M. Wisler, Hugh E. Hall, Jr. | 2006-10-24 |