Steffen Hansen

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Tananger, NO

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Patents Grantslast 30 patents

Information Patent Grant
Or relating to well abandonment and slot recovery
- Patent number 11,613,951
- Issue date Mar 28, 2023
- ARDYNE HOLDINGS LIMITED
- Lars Kristian Kristiansen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole tool stop device and method for use of same
- Patent number 10,030,457
- Issue date Jul 24, 2018
- ARDYNE AS
- Edwin Cornelis Gerardus Rooyakkers
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Improvements In Or Relating To Well Abandonment and Slot Recovery
- Publication number 20210355778
- Publication date Nov 18, 2021
- Ardyne Holdings Limited
- Lars Kristian Kristiansen
- E21 - EARTH DRILLING MINING