Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7971661 | Motor bit system | Ashley Bernard Johnson, John Cook | 2011-07-05 |
| 7913773 | Bidirectional drill string telemetry for measuring and drilling control | Qiming Li, Brian Clark, Shyam B. Mehta, Remi Hutin, Christopher Paul Reed +5 more | 2011-03-29 |