Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11905825 | Downhole 3-phase flow measurement using speed of sound above and below the bubble-point pressure | — | 2024-02-20 |
| 11692858 | Flow rate optimizer | — | 2023-07-04 |
| 9383476 | In-well full-bore multiphase flowmeter for horizontal wellbores | Sumeet Trehan | 2016-07-05 |
| 9347310 | Multiphase flowmeter for subsea applications | John Lievois | 2016-05-24 |
| 7938023 | Wet-gas flowmeter | Espen S. Johansen, John Lievois | 2011-05-10 |
| 7926360 | Sonar circumferential flow conditioner | Espen S. Johansen, Leslie Wayne Perry, Alejandro Vera, Daniel Rodriguez, Vijay Ramakrishnan | 2011-04-19 |
| 7654155 | Wet-gas flowmeter | Espen S. Johansen, John Lievois | 2010-02-02 |
| 7607361 | Sonar circumferential flow conditioner | Espen S. Johansen, Leslie Wayne Perry, Alejandro Vera, Daniel Rodriguez, Vijay Ramakrishnan | 2009-10-27 |