Karl Einar Ferkingstad

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Patents Grantslast 30 patents

Information Patent Grant
Stroker device
- Patent number 9,121,241
- Issue date Sep 1, 2015
- Altus Intervention AS
- Karl Einar Ferkingstad
- E21 - EARTH DRILLING MINING
Information Patent Grant
Stroker device
- Patent number 8,739,891
- Issue date Jun 3, 2014
- Aker Well Service AS
- Karl Einar Ferkingstad
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
STROKER DEVICE
- Publication number 20140238695
- Publication date Aug 28, 2014
- Aker Well Service AS
- Karl Einar Ferkingstad
- E21 - EARTH DRILLING MINING
Information Patent Application
Stroker Device
- Publication number 20120037358
- Publication date Feb 16, 2012
- Karl Einar Ferkingstad
- E21 - EARTH DRILLING MINING