Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10724303 | Downhole vibration assembly and method of using same | — | 2020-07-28 |
| 10000970 | Downhole drilling assembly with motor powered hammer and method of using same | Rory McCrae Tulloch, Alastair Henry Walter Macfarlane | 2018-06-19 |
| 9909367 | Downhole tool with rotational drive coupling and associated methods | Rory McCrae Tulloch | 2018-03-06 |
| 9637991 | Running and cementing tubing | Leslie Robertson, Richard Alexander Innes | 2017-05-02 |
| 9587437 | Powered reaming device | Jonathan Ryan Prill | 2017-03-07 |
| 9371692 | Downhole tool | — | 2016-06-21 |
| 9273529 | Downhole pulse generating device | Alan Kitching, Derek Stuart | 2016-03-01 |
| 9045958 | Tubular retrieval | — | 2015-06-02 |
| 9004194 | Downhole tractor | David Coull, Derek Stuart | 2015-04-14 |
| 8550183 | Drilling method | Ian J. Forster, Alastair Henry Walter Macfarlane | 2013-10-08 |
| 8307921 | Drilling apparatus | — | 2012-11-13 |
| 8167051 | Selective agitation | David Coull | 2012-05-01 |
| 8069926 | Method of controlling flow through a drill string using a valve positioned therein | Hazel Farquhar | 2011-12-06 |
| 7823663 | Expandable reamer | — | 2010-11-02 |
| 7703553 | Downhole tool having radially extendable members | Mark K. Adam | 2010-04-27 |
| 7461706 | Drilling apparatus with percussive action cutter | — | 2008-12-09 |
| 7168493 | Downhole tool | — | 2007-01-30 |
| 7077205 | Method and device to free stuck objects | — | 2006-07-18 |
| 7013994 | Directional drilling apparatus | — | 2006-03-21 |
| 6615933 | Downhole tool with extendable members | — | 2003-09-09 |
| 6588518 | Drilling method and measurement-while-drilling apparatus and shock tool | — | 2003-07-08 |
| 6508317 | Downhole apparatus and method of use | Ronnie Hardie | 2003-01-21 |
| 6439318 | Downhole apparatus | Charles Anderson | 2002-08-27 |
| 6431294 | Percussive tool | Ronnie Hardie | 2002-08-13 |
| 6321857 | Directional drilling apparatus and method utilizing eccentric stabilizer | — | 2001-11-27 |