Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817409 | Double-acting reciprocating downhole pump | — | 2004-11-16 |
| 6708763 | Method and apparatus for injecting steam into a geological formation | Jackie C. Sims, Dudley L. Robinson, Ronald W. Schmidt | 2004-03-23 |