Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8021129 | Hydraulically actuated submersible pump | Jared Mangum, Paul A. Treaster | 2011-09-20 |
| 7938200 | Apparatus and method for a hydraulic diaphragm downhole mud motor | — | 2011-05-10 |
| 7252148 | Plunger actuated pumping system | — | 2007-08-07 |
| 6889765 | Submersible well pumping system with improved flow switching mechanism | — | 2005-05-10 |
| 6595280 | Submersible well pumping system with an improved hydraulically actuated switching mechanism | — | 2003-07-22 |
| 6550535 | Apparatus and method for the downhole gravity separation of water and oil using a single submersible pump and an inline separator containing a control valve | — | 2003-04-22 |
| 6017198 | Submersible well pumping system | John R. Nelson | 2000-01-25 |