Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6714153 | Device for electromagnetic detection of geological properties in a well | Fan-Nian Kong, Svein Ellingsrud, Vidar Sten-Halvorsen, Harald Westerdahl, Terje Eidesmo | 2004-03-30 |
| 6412555 | System and method for controlling fluid flow in one or more oil and/or gas wells | Vidar Sten-Halvorsen | 2002-07-02 |