| 11753905 |
Downhole tool actuator with viscous fluid clearance paths |
Ross Dusterhoft, Brad R. Pickle, Leo G. Collins, Adam Beck, Matthew Lawrence Apiecionek |
2023-09-12 |
| 7032675 |
Thermally-controlled valves and methods of using the same in a wellbore |
David Joe Steele, Russell Irving Bayh, III, Joseph D. Parlin, Dan P. Saurer |
2006-04-25 |
| 6702025 |
Hydraulic control assembly for actuating a hydraulically controllable downhole device and method for use of same |
— |
2004-03-09 |
| 6302210 |
Safety valve utilizing an isolation valve and method of using the same |
Robert W. Crow, Michael B. Vinzant, Gerald L. LeBoeuf |
2001-10-16 |
| 5249630 |
Perforating type lockout tool |
Rennie L. Dickson |
1993-10-05 |
| 5125457 |
Resilient seal for curved flapper valve |
— |
1992-06-30 |
| 5022427 |
Annular safety system for gas lift production |
Ronald K. Churchman, Nam Van Le |
1991-06-11 |
| RE32343 |
Well safety valve |
Michael B. Vinzant, Steven C. Speegle, Robert L. Hilts |
1987-02-03 |
| 4461353 |
Well safety valve |
Michael B. Vinzant, Steven C. Speegle, Robert L. Hilts |
1984-07-24 |