Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9732760 | Impeller for centrifugal pump and use thereof when pumping drill fluid containing cuttings | — | 2017-08-15 |
| 9534601 | Pump | — | 2017-01-03 |
| 9057233 | Boost system and method for dual gradient drilling | Roger Sverre Stave | 2015-06-16 |
| 8613608 | Progressive cavity pump having an inner rotor, an outer rotor, and transition end piece | — | 2013-12-24 |
| 8556603 | Progressing cavity pump adapted for pumping of compressible fluids | — | 2013-10-15 |
| 8496456 | Progressive cavity pump including inner and outer rotors and a wheel gear maintaining an interrelated speed ratio | — | 2013-07-30 |
| 8388327 | Progressing cavity pump with several pump sections | — | 2013-03-05 |