Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6752560 | Removable splined shaft end for submersible pumps | Terry W. Shafer, John J. Mack | 2004-06-22 |
| 6723158 | Gas separator improvements | Donn J. Brown | 2004-04-20 |
| 6715556 | Gas restrictor for horizontally oriented well pump | John J. Mack | 2004-04-06 |