Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6374669 | Water influx identification | Howard L. McKinzie, Billy W. Surles | 2002-04-23 |
| 6123149 | Dual injection and lifting system using an electrical submersible progressive cavity pump and an electrical submersible pump | Howard L. McKinzie, Lon A. Stuebinger | 2000-09-26 |
| 6032743 | Method and apparatus for reducing gas well production costs using improved downhole valves | Howard L. McKinzie, Carlos W. Pardo | 2000-03-07 |
| 5971069 | Well completion and production techniques | James R. Stoy | 1999-10-26 |
| 5915477 | Enhanced oil recovery technique | Lon A. Stuebinger, Howard L. McKinzie | 1999-06-29 |
| 5857519 | Downhole disposal of well produced water using pressurized gas | James R. Stoy | 1999-01-12 |
| 5813469 | Coupled downhole pump for simultaneous injection and production in an oil wheel | — | 1998-09-29 |
| 5497832 | Dual action pumping system | Lon A. Stuebinger, Carlos W. Pardo | 1996-03-12 |