Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10495777 | System and method for wellbore surveying using directional gamma detection | Nigel John Dennis Kilshaw, Donald Ian Carruthers, Peter Allen | 2019-12-03 |
| 9977145 | System and method for wellbore surveying using directional gamma detection | Nigel John Dennis Kilshaw, Donald Ian Carruthers, Peter Allen | 2018-05-22 |
| 8579044 | Bending of a shaft of a steerable borehole drilling tool | Peter Allen, Nigel John Dennis Kilshaw, Jonathan C. Long, Donald Ian Carruthers | 2013-11-12 |