Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7207381 | Downhole pump driven by injection water | — | 2007-04-24 | |
| 7073726 | Bridging platform arrangement | Betty Lynette Sharp | 2006-07-11 | |
| 5685369 | Metal seal well packer | Steven Ellis, Stephen Reid, Richard P. Rubbo | 1997-11-11 | $449,000 |
| 5560435 | Method and apparatus for drilling multiple offshore wells from within a single conductor string | — | 1996-10-01 | $698,000 |
| 5327965 | Wellhead completion system | Garry Stephen, Dale Brian Marietta, Norman Brammer, Casimir J. Fritshe, Lawrence A. Eckert | 1994-07-12 | $349,000 |