Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11401769 | Head apparatus | — | 2022-08-02 |
| 11401764 | Downhole swivel tool | — | 2022-08-02 |
| 9115546 | Drill pipe tubing and casing protector | — | 2015-08-25 |
| 8661877 | Apparatus and method for testing float equipment | — | 2014-03-04 |
| 8511392 | Downhole swivel sub | James Bain | 2013-08-20 |
| 8342251 | Shoe for wellbore lining tubing | Michael Wardley | 2013-01-01 |
| 8191639 | Downhole swivel sub | James Bain | 2012-06-05 |
| 7866391 | Shoe for wellbore lining tubing | Michael Wardley | 2011-01-11 |
| 7757771 | Wellhead seal unit | — | 2010-07-20 |
| 7740073 | Wellhead seal unit | — | 2010-06-22 |
| 7686089 | Hanging apparatus and method | Michael Wardley, Graeme Thomas Marr | 2010-03-30 |
| 7413023 | Wellhead seal unit | — | 2008-08-19 |
| 7322408 | Downhole tool with actuable barrier | — | 2008-01-29 |
| 7237617 | Disengageable downhole tool | — | 2007-07-03 |
| 7228910 | Safety mechanism for weight-set downhole tool | — | 2007-06-12 |
| 7191835 | Disengagable burr mill | George Telfer | 2007-03-20 |
| 7152686 | Downhole weight bearing apparatus and method | George Telfer | 2006-12-26 |
| 7096950 | Combined milling and scraping tool | George Telfer | 2006-08-29 |
| 7055605 | Downhole circulation valve operated by dropping balls | George Telfer | 2006-06-06 |
| 6896064 | Compression set packer and method of use | George Telfer | 2005-05-24 |
| 6655462 | Magnetic well cleaning apparatus | Mark Carmichael | 2003-12-02 |
| 6609569 | Downhole fluid sampler | George Telfer | 2003-08-26 |
| 6530429 | Downhole cleaning tool with shear clutch | — | 2003-03-11 |
| 6497295 | Torque limiting tool | Mark Carmichael | 2002-12-24 |
| 6454009 | Apparatus and method for cleaning well risers | Mark Carmichael | 2002-09-24 |