Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12203562 | Method to temporarily lock open a safety valve and system | — | 2025-01-21 |
| 11231315 | Acoustic detection of position of a component of a fluid control device | — | 2022-01-25 |
| 10190389 | High pressure interventionless borehole tool setting force | — | 2019-01-29 |
| 9455793 | Digital radio receiver system and method | Ivan Griffin, Daire McNamara, Billy O'Mahony, David W. O'Reilly | 2016-09-27 |
| 9065577 | Digital radio receiver system and method | Ivan Griffin, Daire McNamara, Billy O'Mahony, David W. O'Reilly | 2015-06-23 |
| 8701782 | Subsurface safety valve with metal seal | David Z. Anderson | 2014-04-22 |
| 8176975 | Tubing pressure insensitive actuator system and method | Gary B. Lake, David Z. Anderson, Aaron T. Jackson | 2012-05-15 |
| 7938179 | Method of using a charged chamber pressure transmitter for subterranean tools | Steven L. Jennings, David Z. Anderson, Steve Rosenblatt | 2011-05-10 |
| 7905292 | Pressure equalization device for downhole tools | Clifford H. Beall, Michael J. May, James T. Sloan | 2011-03-15 |
| 7762335 | Switching apparatus between independent control systems for a subsurface safety valve | David Z. Anderson, Alan N. Wagner, John E. Gunnells, Anthony S. Coghill, Allen P. Carney +3 more | 2010-07-27 |
| 7735560 | Distortion compensation for rod piston bore in subsurface safety valves | David Z. Anderson, Alan N. Wagner, Clifford H. Beall, Gary B. Lake | 2010-06-15 |
| 7717185 | Lock open and control system access apparatus for a downhole safety valve | David Z. Anderson, Allen P. Carney | 2010-05-18 |
| 7699108 | Distortion compensation for rod piston bore in subsurface safety valves | David Z. Anderson, Alan N. Wagner, Clifford H. Beall, Gary B. Lake | 2010-04-20 |
| 7694742 | Downhole hydraulic control system with failsafe features | David Z. Anderson, Aaron T. Jackson, Clifford H. Beall, Edward Welch, Alan N. Wagner | 2010-04-13 |
| 7665518 | Method of using a charged chamber pressure transmitter for subsurface safety valves | Steven L. Jennings, David Z. Anderson, Steve Rosenblatt | 2010-02-23 |
| 7621327 | Downhole seal bore repair device | — | 2009-11-24 |
| 7591317 | Tubing pressure insensitive control system | David Z. Anderson, Aaron T. Jackson | 2009-09-22 |
| 7552774 | Control line hydrostatic minimally sensitive control system | David Z. Anderson, Edward Welch, Alan N. Wagner, Clifford H. Beall | 2009-06-30 |