| 11486508 |
Deep set safety valve |
Barry Kent Holder, James Easey, Ranjit Singh, Andre Orban, Daniel Maurice Lerner |
2022-11-01 |
| 10443347 |
Downhole completion tool |
Kevin Scott Kippola, Tracy Dean Blanton, William John Darnell |
2019-10-15 |
| 10107074 |
Downhole completion tool |
Kevin Scott Kippola, Tracy Dean Blanton, William John Darnell |
2018-10-23 |
| 9664008 |
Downhole completion tool |
Kevin Scott Kippola, Tracy Dean Blanton, William John Darnell |
2017-05-30 |
| 8567509 |
Downhole tool |
Kevin Scott Kippola, Tracy Dean Blanton, William John Darnell, Rodney Wayne Long |
2013-10-29 |
| 8220555 |
Downhole tool shifting mechanism and method for shifting a downhole tool |
Charles David Wintill, William John Darnell, William Ryle Darnell, Rodney Wayne Long |
2012-07-17 |
| 8171998 |
System for controlling hydrocarbon bearing zones using a selectively openable and closable downhole tool |
William John Darnell, Charles David Wintill, Rodney Wayne Long, Tracy Dean Blanton, William Ryle Darnell |
2012-05-08 |
| 8141648 |
Multiple-positioning mechanical shifting system and method |
William John Darnell, Charles David Wintill, Rodney Wayne Long |
2012-03-27 |
| 7954545 |
Plunger lift system for well |
William Hearn |
2011-06-07 |
| 7926580 |
Coiled tubing multi-zone jet frac system |
William Ryle Darnell, William John Darnell |
2011-04-19 |
| 7926595 |
Filter sub |
Charles David Wintill, William John Darnell, William Ryle Darnell, Rodney Wayne Long |
2011-04-19 |
| 7926569 |
Bypass device for wellbores |
Charles David Wintill, William John Darnell, William Ryle Darnell, Rodney Wayne Long |
2011-04-19 |
| 7520333 |
Hydraulic sleeve valve with position indication, alignment, and bypass |
Dewayne Turner, Richard J. Ross, Kenneth E. Rozek |
2009-04-21 |
| 7490669 |
Multi-zone, single trip well completion system and methods of use |
David Walker, Dewayne Turner, Gregg W. Stout, Christopher L. Blackler, Jack Robbins +1 more |
2009-02-17 |