John Arild Ostevik

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Patents Grantslast 30 patents

Information Patent Grant
Plug device
- Patent number 8,376,044
- Issue date Feb 19, 2013
- Aker Well Service AS
- John Arild Ostevik
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Plug Device
- Publication number 20100126714
- Publication date May 27, 2010
- AKER WELL SERVICE AS
- John Arild Ostevik
- E21 - EARTH DRILLING MINING