Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8708671 | Cranked rod pump apparatus and method | Benjamin J. Gregory, Thomas L. Beck, Ronald G. Peterson, Michael A. MacDonald | 2014-04-29 |
| 8384318 | Induction motor torque control in a pumping system | Thomas L. Beck, Mark E. Garlow, Michael O. Lucas, Michael A. MacDonald, Ronald G. Peterson | 2013-02-26 |
| 8328536 | Cranked rod pump apparatus | Thomas L. Beck, Ronald G. Peterson, Michael A. MacDonald | 2012-12-11 |
| 8080950 | Induction motor torque control in a pumping system | Thomas L. Beck, Mark E. Garlow, Michael O. Lucas, Michael A. MacDonald, Ronald G. Peterson | 2011-12-20 |