Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9097816 | Apparatus for detecting low frequency electromagnetic field responses from a subsurface environment | Svein Ellingsrud, Hans Jensen | 2015-08-04 |
| 7369716 | High pressure and high temperature acoustic sensor | Arne Berg, Sverre Knudsen, Daniel M. Woo, James Dunphy | 2008-05-06 |