Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8393386 | Subsurface safety valve and method of actuation | Gary B. Lake, John Burris, David Z. Anderson, Brock Alan Peoples, Robert McDaniel +1 more | 2013-03-12 |
| 6269874 | Electro-hydraulic surface controlled subsurface safety valve actuator | Michael S. Rawson, Doug Trott | 2001-08-07 |
| 5984260 | Electrically driven actuator with failsafe feature | Michael S. Rawson, Doug Trott | 1999-11-16 |