Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10934834 | Method and system for alignment of a wellbore completion | Øivind Godager, Bruce H. Storm, Jr. | 2021-03-02 |
| 10227866 | Method and system for alignment of a wellbore completion | Øivind Godager, Bruce H. Storm, Jr. | 2019-03-12 |
| 10030510 | Wellbore E-field wireless communication system | Oivind Godager | 2018-07-24 |
| 9714567 | Wellbore E-field wireless communication system | Øivind Godager | 2017-07-25 |
| 7456632 | Method for monitoring low-resistivity formation using polarized waves | Svein Erling Johnstad, Harald Westerdahl | 2008-11-25 |
| 7453265 | Device for monitoring of oil-water interface | Svein Erling Johnstad, Harald Westerdahl | 2008-11-18 |
| 7145341 | Method and apparatus for recovering hydrocarbons from subterranean reservoirs | Svein Ellingsrud, Terje Eidesmo, Harald Westerdahl | 2006-12-05 |
| 7051321 | Method and apparatus for scalable handling of non-tree structures in parser tree reconstruction | — | 2006-05-23 |
| 7026819 | Electromagnetic surveying for mapping the content of subterranean reservoirs | Terje Eidesmo, Svein Ellingsrud, Harald Westerdahl, Stale Johansen | 2006-04-11 |
| 6996769 | Method and system for generating documentation from operating system command syntax | Wendy Peikes, Ramanan Subrumanian, David Patrick Cavanaugh, Thomas A. Stern, Palaniappan Jambulingam | 2006-02-07 |
| 6954925 | Method of parsing commands using linear tree representation | — | 2005-10-11 |
| 6900639 | Electromagnetic method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves | Svein Ellingsrud, Terje Eidesmo, Harald Westerdahl | 2005-05-31 |
| 6864684 | Electromagnetic methods and apparatus for determining the content of subterranean reservoirs | Svein Ellingsrud, Terje Eidesmo, Harald Westerdahl | 2005-03-08 |
| 6859038 | Method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves | Svein Ellingsrud, Terje Eidesmo, Harald Westerdahl | 2005-02-22 |
| 6717411 | Electromagnetic method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves | Svein Ellingsrud, Terje Eidesmo, Harald Westerdahl | 2004-04-06 |
| 6714153 | Device for electromagnetic detection of geological properties in a well | Svein Ellingsrud, Vidar Sten-Halvorsen, Einar Stølen, Harald Westerdahl, Terje Eidesmo | 2004-03-30 |
| 6696839 | Electromagnetic methods and apparatus for determining the content of subterranean reservoirs | Svein Ellingsrud, Terje Eidesmo, Harald Westerdahl | 2004-02-24 |
| 6628119 | Method and apparatus for determining the content of subterranean reservoirs | Terje Eidesmo, Svein Ellingsrud, Harald Westerdahl, Stale Johansen | 2003-09-30 |
| 6556014 | Device and method for measurement by guided waves on a metal string in a well | Harald Westerdahl, Terje Eidesmo, Svein Ellingsrud | 2003-04-29 |
| 6525540 | Method and device for detection of em waves in a well | Harald Westerdahl, Terje Eidesmo, Svein Ellingsrud | 2003-02-25 |
| 6480000 | Device and method for measurement of resistivity outside of a wellpipe | Harald Westerdahl, Terje Eidesmo, Svein Ellingsrud | 2002-11-12 |