Rolf Bjerkoy

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Melsomvik, NO

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Patents Grantslast 30 patents

Information Patent Grant
Method of towing sources of seismic energy behind a vessel, and an...
- Patent number 5,157,636
- Issue date Oct 20, 1992
- Geco A.S.
- Rolf Bjerkoy
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
Information Patent Grant
Method for conducting seismic surveys in waters covered with ice
- Patent number 5,113,376
- Issue date May 12, 1992
- Geco A.S.
- Rolf Bjerkoy
- G01 - MEASURING TESTING
Information Patent Grant
Arrangement for deployment of seismic cables
- Patent number 4,798,156
- Issue date Jan 17, 1989
- Geco A.S.
- Jan-Age Langeland
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT