| 9845651 |
Retrievable downhole tool system |
Mark McCoy, Benny Layton, Michael J. Harris |
2017-12-19 |
| 8424381 |
Fluid level measuring device |
David A. Lamphere |
2013-04-23 |
| 8074718 |
Ball seat sub |
— |
2011-12-13 |
| 8047280 |
Drillable bridge plug |
Lap Tran, Piro Shkurti, George J. Melenyzer |
2011-11-01 |
| 7980300 |
Drillable bridge plug |
James A. Simson, George J. Melenyzer |
2011-07-19 |
| 7810558 |
Drillable bridge plug |
Piro Shkurti, Lap Tran, George J. Melenyzer |
2010-10-12 |
| 7665516 |
Permanent anchoring device |
Lap Tran |
2010-02-23 |
| 7455118 |
Secondary lock for a downhole tool |
George J. Melenyzer |
2008-11-25 |
| 7424909 |
Drillable bridge plug |
James A. Simson, George J. Melenyzer |
2008-09-16 |
| 7325631 |
Mill and pump-off sub |
Tracy Speer |
2008-02-05 |
| 7216700 |
Torsional resistant slip mechanism and method |
— |
2007-05-15 |
| 6580732 |
Multiple mode laser |
Steve Guch, Jr., Charles L. Stonecypher, Ronald R. Selleck |
2003-06-17 |
| 6564871 |
High pressure permanent packer |
— |
2003-05-20 |
| 6305474 |
Scoop for use with an anchor system for supporting a whipstock |
J. Brandon Guillory |
2001-10-23 |
| 6164377 |
Downhole packer system |
— |
2000-12-26 |
| 4771881 |
Materials handling system |
— |
1988-09-20 |
| 4565247 |
Wireline set tubing retrievable seal bore packer apparatus |
William T. Tapp |
1986-01-21 |
| 4430887 |
Pipe tester with multiple fluid source connections |
Fred L. Herman |
1984-02-14 |
| 4325409 |
Pilot valve for subsea test valve system for deep water |
— |
1982-04-20 |
| 4325434 |
Tubing shut off valve |
— |
1982-04-20 |
| 4270606 |
Apparatus for selective disengagement of a fluid transmission conduit and for control of fluid transmission from a well zone |
David M. McStravick |
1981-06-02 |
| 4234043 |
Removable subsea test valve system for deep water |
— |
1980-11-18 |
| 4230061 |
Liquid cargo container |
Jean Kohn |
1980-10-28 |
| 4210207 |
Valve apparatus |
David M. McStravick |
1980-07-01 |