Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10538984 | Mini-severing and back-off tool with pressure balanced explosives | James G. Rairigh | 2020-01-21 |
| 10240421 | String shot back-off tool with pressure-balanced explosives | James G. Rairigh | 2019-03-26 |
| 10161197 | Well tool centralizer systems and methods | James G. Rairigh | 2018-12-25 |
| 10077617 | Well tool centralizer systems and methods | James G. Rairigh | 2018-09-18 |
| 10047591 | Apparatus and methods for shaped charge tubing cutters | James G. Rairigh | 2018-08-14 |
| 9879494 | High energy severing tool with pressure balanced explosives | James G. Rairigh | 2018-01-30 |
| 9657544 | Drill collar severing tool | James G. Rairigh | 2017-05-23 |
| 9435170 | High energy severing tool with pressure balanced explosives | James G. Rairigh | 2016-09-06 |
| 9428979 | Shaped charge casing cutter | James G. Rairigh | 2016-08-30 |
| 9038713 | Shaped charge casing cutter | James G. Rairigh | 2015-05-26 |
| 9022116 | Shaped charge tubing cutter | James G. Rairigh | 2015-05-05 |
| 8939210 | Drill collar severing tool | James G. Rairigh | 2015-01-27 |
| 8919236 | Perforating gun drop sub | Don Umphries | 2014-12-30 |
| 8770301 | Explosive well tool firing head | — | 2014-07-08 |
| 8302523 | Explosive well tool firing head | — | 2012-11-06 |
| 8302534 | Radial-linear shaped charge pipe cutter | Wenbo Yang | 2012-11-06 |
| 8136439 | Explosive well tool firing head | — | 2012-03-20 |
| 7698982 | Explosive pipe severing tool | — | 2010-04-20 |
| 7661367 | Radial-linear shaped charge pipe cutter | Wenbo Yang | 2010-02-16 |
| 7536942 | Explosive pipe severing tool | — | 2009-05-26 |
| 7530397 | Explosive pipe severing tool | — | 2009-05-12 |
| 7195066 | Engineered solution for controlled buoyancy perforating | Richard A. Sukup | 2007-03-27 |
| 7146913 | Shaped charge tubing cutter | — | 2006-12-12 |
| 7073448 | Shaped charge tubing cutter | — | 2006-07-11 |
| 6959765 | Explosive pipe severing tool | — | 2005-11-01 |