Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209651 | Multiple engine deep well pump | David B. Dillon | 1993-05-11 |
| 5064355 | Multiple engine deep well pump | David B. Dillon | 1991-11-12 |
| 4227865 | Constant fluid film thickness hydrostatic thrust bearing | John W. Erickson | 1980-10-14 |