Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12398631 | Current balancing for wellbore artificial lift device | Hassan Mansir, John Badawi | 2025-08-26 |
| 12037880 | Systems and methods for restarting downhole pump | Matthew S. Myers, Noel Johney, Waylon David Whorton | 2024-07-16 |
| 10374542 | Electric submersible pump variable speed drive controller | Ryan Bridwell Ashbaugh, John Vanderstaay Kenner | 2019-08-06 |
| 9998054 | Electric submersible pump variable speed drive controller | Ryan Bridwell Ashbaugh, John Vanderstaay Kenner | 2018-06-12 |
| 8314583 | System, method and program product for cable loss compensation in an electrical submersible pump system | Dick L. Knox, John M. Leuthen, Jim E. Layton, Howard G. Thompson | 2012-11-20 |
| 8141646 | Device and method for gas lock detection in an electrical submersible pump assembly | Robert Allen, John M. Leuthen, Dick L. Knox, Jerald R. Rider, Brown Lyle Wilson +1 more | 2012-03-27 |
| 8092190 | Systems and methods for reducing pump downtime by determining rotation speed using a variable speed drive | John M. Leuthen, Sheldon Plitt, Jerald R. Rider | 2012-01-10 |
| 7834643 | Systems and methods for reducing distortion in a power source using an active harmonics filter | John M. Leuthen, Jerald R. Rider, Michael C. Underwood | 2010-11-16 |
| 7607896 | Systems and methods for power ride-through in variable speed drives | John M. Leuthen, Dick L. Knox, Jerald R. Rider | 2009-10-27 |