Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9124169 | Autotransformer system reducing total harmonic distortion | William S. Hammel | 2015-09-01 |
| 8444393 | Rod pump control system including parameter estimator | Thomas L. Beck, Ronald G. Peterson, Theresa Smigura | 2013-05-21 |
| 8384318 | Induction motor torque control in a pumping system | Thomas L. Beck, Michael Dry, Michael O. Lucas, Michael A. MacDonald, Ronald G. Peterson | 2013-02-26 |
| 8197219 | Estimation and control of a resonant plant prone to stick-slip behavior | — | 2012-06-12 |
| 8080950 | Induction motor torque control in a pumping system | Thomas L. Beck, Michael Dry, Michael O. Lucas, Michael A. MacDonald, Ronald G. Peterson | 2011-12-20 |
| 7786691 | Bus disturbance regulator | William S. Hammel | 2010-08-31 |
| 7645124 | Estimation and control of a resonant plant prone to stick-slip behavior | — | 2010-01-12 |
| 7545113 | Harmonic disturbance regulator | William S. Hammel, David R. Seidl | 2009-06-09 |
| 7437215 | Method and system for improving pump efficiency and productivity under power disturbance conditions | Robb G. Anderson, Harry W. Schulz | 2008-10-14 |
| 7168924 | Rod pump control system including parameter estimator | Thomas L. Beck, Ronald G. Peterson, Theresa Smigura | 2007-01-30 |