Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9429001 | Synchronized pump down control for a dual well unit with regenerative assist | — | 2016-08-30 |
| 9115705 | Synchronized dual well variable stroke and variable speed pump down control with regenerative assist | — | 2015-08-25 |
| 8523533 | Constant horsepower regenerative assist for a hydraulic rod pumping unit | — | 2013-09-03 |
| 8087904 | Hybrid hydraulic-electric RAM pumping unit with downstroke energy recovery | — | 2012-01-03 |
| 5523638 | Shaft mounted eddy current drive with rotary electrical connector | James W. Albrecht, James R. Boone | 1996-06-04 |
| 5251696 | Method and apparatus for variable speed control of oil well pumping units | James R. Boone, Ronnie Brown | 1993-10-12 |