Svein Egil Johansen

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Oslo, NO

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Patents Grantslast 30 patents

Information Patent Grant
Representation of seismic data
- Patent number 6,055,481
- Issue date Apr 25, 2000
- Svein E. Johansen
- G01 - MEASURING TESTING
Information Patent Grant
Acoustic source assembly
- Patent number 5,652,735
- Issue date Jul 29, 1997
- Petroleum Geo Services AS
- Svein Egil Johansen
- G10 - MUSICAL INSTRUMENTS ACOUSTICS