Bernt Olav Holen

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Mandal, NO

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Patents Grantslast 30 patents

Information Patent Grant
Centring means in a rotary tong
- Patent number 9,410,384
- Issue date Aug 9, 2016
- Aker MH AS
- Bernt Olav Holen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Device and method for rotation of torque tong
- Patent number 8,939,048
- Issue date Jan 27, 2015
- Aker MH AS
- Bernt Olav Holen
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
CENTRING MEANS IN A ROTARY TONG
- Publication number 20120111154
- Publication date May 10, 2012
- Aker MH AS
- Bernt Olav Holen
- E21 - EARTH DRILLING MINING
Information Patent Application
DEVICE AND METHOD FOR ROTATION OF TORQUE TONG
- Publication number 20120111155
- Publication date May 10, 2012
- Aker MH AS
- Bernt Olav Holen
- E21 - EARTH DRILLING MINING