Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10450838 | Diverter valve for progressing cavity pump | — | 2019-10-22 |
| 8726981 | Tandem progressive cavity pumps | — | 2014-05-20 |
| 8333244 | Bottom tag for progressing cavity pump rotor with coiled tubing access | Nicholas D. Johnson | 2012-12-18 |
| 7628209 | Tubing driven progressing cavity pump and method of pumping well fluid from a well | Bruce Proctor, Kelley L. Phillips | 2009-12-08 |