Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9677376 | Flow stop valve | Robert Large | 2017-06-13 |
| 9347286 | Flow stop valve | Robert Large, Peter Ryan Morris | 2016-05-24 |
| 9109410 | Method system and apparatus for reducing shock and drilling harmonic variation | Stephen John McLoughlin | 2015-08-18 |
| 8752630 | Flow stop valve | Robert Large | 2014-06-17 |
| 8622153 | Downhole assembly | Stephen John McLoughlin | 2014-01-07 |
| 8590629 | Flow stop valve and method | Robert Large | 2013-11-26 |
| 8381823 | Downhole tubular connector | Robert Large | 2013-02-26 |
| 8316930 | Downhole tubular connector | Matthew Clubb, Dougal Hugo Brown, Alan Payne, Stuart Card, Robert Large +1 more | 2012-11-27 |
| 8047278 | Hydraulic connector apparatuses and methods of use with downhole tubulars | Burney J. Latiolais, Jr., Robert Large | 2011-11-01 |
| 8006753 | Hydraulic connector apparatuses and methods of use with downhole tubulars | Robert Large | 2011-08-30 |
| 8002028 | Hydraulic connector apparatuses and methods of use with downhole tubulars | Robert Large | 2011-08-23 |
| 7690422 | Drill-string connector | Robert Large | 2010-04-06 |
| 7377337 | Downhole drilling tool | Christopher David Down | 2008-05-27 |
| 7216726 | Downhole fluid-tight flexible joint | Joseph Fitzgerald | 2007-05-15 |
| 7182161 | Drill string tool with bearing sleeve | — | 2007-02-27 |
| 6546581 | Casing scraper | Matthew Clubb | 2003-04-15 |
| 6279669 | Indexing mechanism and apparatus incorporating the same | Malcolm Abbott | 2001-08-28 |
| 6223840 | Cutting bed impeller | — | 2001-05-01 |
| 5937957 | Cutting bed impeller | — | 1999-08-17 |
| 5711386 | Equipment to reduce torque on a drill string | — | 1998-01-27 |
| 4865138 | Drill string stabilizer | — | 1989-09-12 |
| 4754821 | Locking device | — | 1988-07-05 |
| 4572305 | Drilling apparatus | — | 1986-02-25 |