Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10428628 | Surface-driven pumping system and method for recovering a fluid from a subsurface hydrocarbon deposit | Larry Cardinal | 2019-10-01 |
| 8066477 | Staged centrifugal pump apparatus for pumping a viscous fluid | — | 2011-11-29 |
| 6494621 | Bushing and bearing assembly | — | 2002-12-17 |
| 6227796 | Conical stacked-disk impeller for viscous liquids | — | 2001-05-08 |
| 4641498 | Geothermal turbine | Philip H. Klepesch | 1987-02-10 |