| 11499400 |
Punch mechanism |
Grant George |
2022-11-15 |
| 11384621 |
Automatic flow control valve |
— |
2022-07-12 |
| 11162345 |
Fracing plug |
Grant George, Matthew McCarthy, Shane Sargent |
2021-11-02 |
| 10851616 |
Wireline suspendable apparatus for sealing a subterranean well |
Peter Knight, Grant George |
2020-12-01 |
| 10508526 |
Fracing plug |
Grant George, Matthew McCarthy, Shane Sargent |
2019-12-17 |
| 9689236 |
Liner hanger |
Grant George, Shane Sargent, Matthew McCarthy |
2017-06-27 |
| 9638003 |
Sleeve valve |
Grant George, Shane Sargent, Matthew McCarthy |
2017-05-02 |
| 9617823 |
Axially compressed and radially pressed seal |
Grant George, Shane Sargent |
2017-04-11 |
| 8056621 |
Master ball valve with integrated hanger |
Grant George, Geoff Steele, Jordan James |
2011-11-15 |
| 6199630 |
Pull-through tubing string rotator for an oil well |
Chris C. Blundell, Andrew Wright |
2001-03-13 |
| 5996688 |
Hydraulic pump jack drive system for reciprocating an oil well pump rod |
Glenn S Schultz, Les Grabill |
1999-12-07 |
| 5875841 |
Oil well blow-out preventer |
Andrew Wright |
1999-03-02 |
| 5794693 |
Dual tubing string hanging apparatus |
Andrew Wright |
1998-08-18 |
| 5746249 |
Oil well blow-out preventer and sealing device |
Andrew Wright |
1998-05-05 |
| 5383519 |
Apparatus for rotating a tubing string of a pumping wellhead |
James A. Wright |
1995-01-24 |
| 4658917 |
Enclosed jar tool |
— |
1987-04-21 |
| 4518319 |
Variable displacement pump system |
— |
1985-05-21 |
| 4480963 |
Pump swashplate control assist |
— |
1984-11-06 |
