Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7916578 | Seismic wave generation systems and methods for cased wells | James Minto, Martin Sorrells, Thomas E. Owen | 2011-03-29 |
| 5096394 | Positive displacement pump with rotating reciprocating piston and improved pulsation dampening | C. Richard Gerlach | 1992-03-17 |
| 5074767 | Positive displacement pump with rotating reciprocating piston and improved lubrication feature | C. Richard Gerlach | 1991-12-24 |
| 5022831 | Positive displacement pump with rotating reciprocating piston | C. Richard Gerlach | 1991-06-11 |
| 4706228 | Asymmetrical lateral-force seismic source transducer | Thomas E. Owen | 1987-11-10 |
| 4651311 | Electrodeless spark discharge acoustic pulse transducer for borehole operation | Thomas E. Owen | 1987-03-17 |