Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11708749 | Downhole device with signal transmitter | — | 2023-07-25 |
| 11540953 | Compression garment | Anette Kleppa, Martin Nesheim | 2023-01-03 |
| 11236571 | Wellhead assembly and method | — | 2022-02-01 |
| 11002102 | Plug and production tubing for a petroleum well | Ole Sevheim | 2021-05-11 |
| 10597990 | Gas lift valve | Ståle Pettersen | 2020-03-24 |
| 10450821 | Wellhead port plug assembly | Lino Guedes, Andre Bolager, Kristian Harestad, Trond Kvasnes | 2019-10-22 |
| 10294763 | Bellows valve and an injection valve | — | 2019-05-21 |
| 9611720 | Valve arrangement and method of operating the same | Ole Sevheim, Kristian Harestad | 2017-04-04 |
| 9587463 | Valve system | Magnar Tveiten, Øyvind Stokka, Ole Sevheim | 2017-03-07 |
| 9500062 | Valve device of a wellhead Christmas tree assembly | Magnar Tveiten, Øyvind Stokka | 2016-11-22 |
| 9394754 | Kick over tool | Ståle Pettersen | 2016-07-19 |
| 9382777 | Tool for installing units in a well | Ståle Pettersen, Trond Kvasnes | 2016-07-05 |
| 9371713 | Plug sensor | — | 2016-06-21 |
| 9217322 | Methods for installing and retrieving a well monitoring apparatus | — | 2015-12-22 |
| 9157294 | Wave-inducing device, casing system and method for cementing a casing in a borehole | Kristian Harestad | 2015-10-13 |
| 9140096 | Valve system | Magnar Tveiten, Øyvind Stokka, Ole Sevheim | 2015-09-22 |
| 8701779 | Bellows valve | Øyvind Stokka, Ole Sevheim | 2014-04-22 |
| 8684073 | Device for injection and stimulation of fluids in a well bore | Ole Sevheim, Øyvind Stokka, Magnar Tveiten | 2014-04-01 |
| 8640776 | Fluid injection device | Magnar Tveiten, Øyvind Stokka, Tom Norland | 2014-02-04 |
| 8291981 | Shear open valve | Magnar Tveiten, Øyvind Stokka, Tom Norland, Ole Sevheim | 2012-10-23 |
| 8186440 | Fluid injection device | Magnar Tveiten, Øyvind Stokka, Tom Norland | 2012-05-29 |
| 8181705 | Fluid injection device | Magnar Tveiten, Øyvind Stokka, Tom Norland | 2012-05-22 |