| 8555956 |
Linear induction motor-operated downhole tool |
Anthony Veneruso, Dwayne May, Fabien Cens |
2013-10-15 |
| 8002040 |
System and method for controlling flow in a wellbore |
Dwayne May, Paul G. Goughnour, David Biddick, Russell A. Johnston |
2011-08-23 |
| 7866401 |
Safety valve for use in an injection well |
— |
2011-01-11 |
| 7832486 |
Flapper gas lift valve |
Thomas M. White, James K. Garner, Jr., Tyson Messick, Fahd F. Abdelall, Kenneth C. Burnett, III |
2010-11-16 |
| 7621331 |
Fluid communication nipple having an interior passageway with an interior wall section that may be opened to establish fluid communication with the passageway |
Stephen Mescall, Iain Caulfield, Russell A. Johnston |
2009-11-24 |
| 7231971 |
Downhole safety valve assembly having sensing capabilities |
— |
2007-06-19 |
| 7114572 |
System and method for offshore production with well control |
Peter F. Batho, Randall Alan Shepler |
2006-10-03 |
| 6513594 |
Subsurface safety valve |
Thomas M. Deaton |
2003-02-04 |
| 6148920 |
Equalizing subsurface safety valve with injection system |
— |
2000-11-21 |
| 5947206 |
Deep-set annulus vent valve |
Gregory Brock Stephenson, Dwayne May |
1999-09-07 |
