Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8944783 | Electric progressive cavity pump | Joseph Liu | 2015-02-03 |
| 8084914 | Stator coil retention system for unvarnished stators | David Fielder | 2011-12-27 |
| 7549849 | Tandem motors | Arthur I. Watson, Tyson Messick, Diego Narvaez, Michael Hui Du | 2009-06-23 |
| 6761544 | Lubrication system for downhole application | — | 2004-07-13 |