Thomas Gunnarshaug

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Trondheim, NO

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Patents Grantslast 30 patents

Information Patent Grant
Method and device related to a retrievable well plug
- Patent number 7,178,602
- Issue date Feb 20, 2007
- Bronnteknologiutvikling AS
- Espen Hiorth
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Method and device related to a retrievable well plug
- Publication number 20040194969
- Publication date Oct 7, 2004
- Espen Hiorth
- E21 - EARTH DRILLING MINING