Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7942214 | Steerable drilling system | Ashley Bernard Johnson, John Cook, Paul A. Wand | 2011-05-17 |
| 7188685 | Hybrid rotary steerable system | Geoff Downton, John David Rowatt | 2007-03-13 |
| 6606923 | Design method for drillout bi-center bits | Graham Watson | 2003-08-19 |
| 6394200 | Drillout bi-center bit | Graham Watson | 2002-05-28 |