Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6129160 | Torque compensation apparatus for bottomhole assembly | Michael Williams | 2000-10-10 |
| 5738178 | Method and apparatus for navigational drilling with a downhole motor employing independent drill string and bottomhole assembly rotary orientation and rotation | Michael Williams | 1998-04-14 |