Jon-Fredrik Hopperstad

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Oslo, NO

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Patents Grantslast 30 patents

Information Patent Grant
Seismic source arrays
- Patent number 8,205,711
- Issue date Jun 26, 2012
- WesternGeco L. L. C.
- Jon-Fredrik Hopperstad
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Marine seismic surveying
- Publication number 20040136266
- Publication date Jul 15, 2004
- WesternGeco
- Martin Howlid
- G01 - MEASURING TESTING
Information Patent Application
Seismic source arrays
- Publication number 20030168277
- Publication date Sep 11, 2003
- Jon-Fredrik Hopperstad
- G01 - MEASURING TESTING