Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12398616 | Flow control device and method | Vidar Mathiesen, Bjornar Werswick | 2025-08-26 |
| 12353228 | Flow control device and method | Vidar Mathiesen, Bjørnar Werswick | 2025-07-08 |
| 12139999 | Fluid control system | Vidar Mathiesen, Bjornar Werswick | 2024-11-12 |
| 11448039 | Downhole fluid control system | Vidar Mathiesen, Bjornar Werswick | 2022-09-20 |
| 11319774 | Downhole fluid control system | Vidar Mathiesen, Bjornar Werswick | 2022-05-03 |
| 10260312 | Flow control device | Vidar Mathiesen, Bjornar Werswick | 2019-04-16 |
| 9752698 | Autonomous valve with temperature responsive device | Vidar Mathiesen, Bjørnar Werswick | 2017-09-05 |
| 9683429 | Flow control device and method | Vidar Mathiesen, Bjornar Werswick | 2017-06-20 |
| 9624759 | Method and an arrangement for controlling fluid flow into a production pipe | Vidar Mathiesen, Torstein Grøstad | 2017-04-18 |
| 9534470 | Autonomous valve | Vidar Mathiesen, Bjørnar Werswick | 2017-01-03 |
| 9366108 | Flow control device and flow control method | Vidar Mathiesen, Bjørnar Werswick | 2016-06-14 |
| 9279309 | Valve arrangement for a production pipe | Bjørnar Werswick, Vidar Matheisen | 2016-03-08 |
| 9038649 | Flow control device and flow control method | Vidar Mathiesen, Bjørnar Werswick | 2015-05-26 |
| 8875797 | Method for flow control and autonomous valve or flow control device | Vidar Mathiesen | 2014-11-04 |
| 8820413 | Alternative design of self-adjusting valve | Vidar Mathiesen | 2014-09-02 |
| 8820414 | Flow control device and flow control method | Vidar Mathiesen, Arne Valle | 2014-09-02 |
| 8590630 | System and method for controlling the flow of fluid in branched wells | Vidar Mathiesen | 2013-11-26 |
| 8517099 | Tubular member having self-adjusting valves controlling the flow of fluid into or out of the tubular member | Vidar Mathiesen | 2013-08-27 |
| 8485258 | Use of autonomous (self-adjusting) valves in injectors in oil production | Vidar Mathiesen | 2013-07-16 |
| 7819196 | Method for operating actuator and an actuator device for use in drainage pipe used for producing oil and/or gas | — | 2010-10-26 |