Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7614446 | Swivelling device for a downhole rod pump | — | 2009-11-10 |
| 6253844 | Swivelling device for a downhole rod pump, and method of use thereof | — | 2001-07-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7614446 | Swivelling device for a downhole rod pump | — | 2009-11-10 |
| 6253844 | Swivelling device for a downhole rod pump, and method of use thereof | — | 2001-07-03 |