Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9175554 | Artificial lift fluid system | — | 2015-11-03 |
| 6414455 | System and method for variable drive pump control | — | 2002-07-02 |
| 5441389 | Eddy current drive and motor control system for oil well pumping | John H. Wolcott, William L. Sieger | 1995-08-15 |