Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8393413 | Closed loop control bore hole drilling system | John Lionel Weston | 2013-03-12 |
| 7975778 | Borehole drilling control system, method and apparatus | John Lionel Weston | 2011-07-12 |
| 7717194 | Borehole drilling control system, method and apparatus | John Lionel Weston | 2010-05-18 |
| 7510027 | Borehole drilling control system, method and apparatus | John Lionel Weston | 2009-03-31 |
| 7506696 | Borehole drilling control system, method and apparatus | John Lionel Weston | 2009-03-24 |
| 6145378 | Aided inertial navigation system | John Lionel Weston | 2000-11-14 |
| 5048619 | Down-hole bearing assemblies | Peter A. Leaney | 1991-09-17 |
| 4974691 | Down-hole bearing assemblies | Peter A. Leaney | 1990-12-04 |