| 10246950 |
Deadline compensator |
— |
2019-04-02 |
| 9932802 |
Downhole slot cutter |
— |
2018-04-03 |
| 9605501 |
System for releasing a cement plug |
— |
2017-03-28 |
| 9528330 |
System and method for transporting tubular onto a drilling rig |
— |
2016-12-27 |
| 9506306 |
Casing filling tool |
— |
2016-11-29 |
| 9507319 |
Flow control diverter valve |
— |
2016-11-29 |
| 9464491 |
Systems and methods for tubular engagement and manipulation |
— |
2016-10-11 |
| 9273540 |
Downhole slot cutter |
— |
2016-03-01 |
| 9175532 |
Downhole tool hydraulic retriever |
Daniel Howard Milmine |
2015-11-03 |
| 9127514 |
Bladder type crimper |
— |
2015-09-08 |
| 9045944 |
Pull-down method and equipment for installing well casing |
Dietmar J. Neidhardt |
2015-06-02 |
| 8985225 |
Tubular engaging device and method |
— |
2015-03-24 |
| 8985227 |
Dampered drop plug |
— |
2015-03-24 |
| 8733474 |
Flow control diverter valve |
— |
2014-05-27 |
| 8701785 |
Shrinkable sleeve stabilizer |
— |
2014-04-22 |
| 8439121 |
Hydraulic interlock system between casing gripper and spider |
Dave Andrews |
2013-05-14 |
| 7793729 |
Gate valve and method of controlling pressure during casing-while-drilling operations |
— |
2010-09-14 |
| 7770654 |
Pipe handling device, method and system |
K. Evert Beierbach |
2010-08-10 |
| 7377324 |
Pipe handling device, method and system |
K. Evert Beierbach |
2008-05-27 |
| 7140443 |
Pipe handling device, method and system |
K. Evert Beierbach |
2006-11-28 |
| 6311792 |
Casing clamp |
Stephen F. Scott |
2001-11-06 |
