| 10006270 |
Subsea mechanism to circulate fluid between a riser and tubing string |
Kenneth L. Schwendemann |
2018-06-26 |
| 9593546 |
Well tools incorporating valves operable by low electrical power input |
Adam D. Wright, Michael Linley Fripp, Kevin D. Fink, Jimmie R. Williamson, Jr., Mark D. Kalman |
2017-03-14 |
| 8997881 |
Pressure bearing wall and support structure therefor |
Paul D. Ringgenberg, Adam Harold Martin |
2015-04-07 |
| 8960998 |
System and method of mixing a formation fluid sample in a downhole sampling chamber with a magnetic mixing element |
Paul D. Ringgenberg, Paul Herman, Vincent P. Zeller |
2015-02-24 |
| 8322426 |
Downhole actuator apparatus having a chemically activated trigger |
Adam D. Wright, Michael Linley Fripp, Scott Luke Miller |
2012-12-04 |
| 8235103 |
Well tools incorporating valves operable by low electrical power input |
Adam D. Wright, Michael Linley Fripp, Kevin D. Fink, Jimmie R. Williamson, Jr., Mark D. Kalman |
2012-08-07 |
| 7458273 |
Fiber optic differential pressure sensor |
Neal G. Skinner, John Dennis |
2008-12-02 |
| 7159468 |
Fiber optic differential pressure sensor |
Neal G. Skinner, John Dennis |
2007-01-09 |
| 5293551 |
Monitor and control circuit for electric surface controlled subsurface valve system |
Thomas M. Deaton |
1994-03-08 |
| 5275038 |
Downhole reeled tubing inspection system with fiberoptic cable |
Phillip S. Sizer, Robert Arthur Rademaker |
1994-01-04 |
| 5070595 |
Method for manufacturing electric surface controlled subsurface valve system |
Thomas M. Deaton |
1991-12-10 |
| 4981173 |
Electric surface controlled subsurface valve system |
Thomas M. Deaton |
1991-01-01 |
| 4886114 |
Electric surface controlled subsurface valve system |
Thomas M. Deaton, Phillip S. Sizer |
1989-12-12 |
| 4798247 |
Solenoid operated safety valve and submersible pump system |
Thomas M. Deaton |
1989-01-17 |
| 4738431 |
Ball valve structure |
— |
1988-04-19 |
| 4582134 |
Well packer |
John C. Gano |
1986-04-15 |
| 4512399 |
Well packer |
John C. Gano |
1985-04-23 |
| 4413677 |
Dual string well packer |
— |
1983-11-08 |