Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4551075 | Well pump | — | 1985-11-05 |
| 4545731 | Method and apparatus for producing a well | James Hays | 1985-10-08 |
| 4516917 | Well pumping apparatus and method | — | 1985-05-14 |
| 4489743 | Differential gas lift valve | Ernest P. Fisher, Jr. | 1984-12-25 |
| 4453568 | Gas control system | — | 1984-06-12 |
| 4441861 | Well production apparatus and method | — | 1984-04-10 |
| 4437514 | Dewatering apparatus | — | 1984-03-20 |
| 4405291 | Downhole double acting pump | — | 1983-09-20 |
| RE30690 | Seal | — | 1981-07-28 |