Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11499374 | Downhole devices and associated apparatus and methods | Alastair Henry Walter Macfarlane, Matthew Shaw, Brad Ivie | 2022-11-15 |
| 10081984 | Downhole motor, drill string provided with such a motor and method of releasing a stuck drill bit attached to such a motor | — | 2018-09-25 |
| 10000970 | Downhole drilling assembly with motor powered hammer and method of using same | Alan Martyn Eddison, Alastair Henry Walter Macfarlane | 2018-06-19 |
| 9970264 | Downhole actuation apparatus and associated methods | — | 2018-05-15 |
| 9909367 | Downhole tool with rotational drive coupling and associated methods | Alan Martyn Eddison | 2018-03-06 |
| 8286733 | Rotary steerable tool | Colin Robert Blair, John David Oates | 2012-10-16 |
| 8011448 | Rotary steerable tool | Victor Laing Allan | 2011-09-06 |
| 7954561 | Vertical direction adjustment tool for downhole drilling apparatus | Roger Farries Findlay, Allan Grant Clark, Victor Laing Allan | 2011-06-07 |
| 7857058 | Downhole swivel joint assembly and method of using said swivel joint assembly | Bruce McGarian | 2010-12-28 |
| 7506704 | Downhole swivel joint | Bruce McGarian | 2009-03-24 |
| 7357198 | Downhole apparatus | Bruce McGarian, Neil Andrew Moir | 2008-04-15 |
| 7337847 | Multi-cycle downhole apparatus | Bruce McGarian, Ian Gillies | 2008-03-04 |
| 7311141 | Casing scraper | Bruce McGarian | 2007-12-25 |
| 7293616 | Expandable bit | — | 2007-11-13 |
| 7255164 | Casing brush assembly | Bruce McGarian | 2007-08-14 |
| 7100713 | Expandable apparatus for drift and reaming borehole | — | 2006-09-05 |
| 7025136 | Torque reduction tool | James Bain, Binnert Ruerd Haites, Mike Wardley | 2006-04-11 |
| 6293342 | Bypass valve closing means | Bruce McGarian | 2001-09-25 |
| 6095249 | Down hole bypass valve | Bruce McGarian, Lawrence Barr | 2000-08-01 |
| 6024166 | Apparatus for forming a slot in a wellbore | Bruce McGarian | 2000-02-15 |
| 5911275 | Apparatus for milling a well casing | Bruce McGarian, Werner Lau | 1999-06-15 |
| 4844179 | Drill string stabilizer | John Forrest, William M. Stewart | 1989-07-04 |
| 4796704 | Drop ball sub-assembly for a down-hole device | John Forrest, William M. Stewart | 1989-01-10 |
| 4775017 | Drilling using downhole drilling tools | John Forrest, William M. Stewart | 1988-10-04 |