David Stewart

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Aberdeen, GB

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Patents Grantslast 30 patents

Information Patent Grant
Or relating to well abandonment and slot recovery
- Patent number 11,946,330
- Issue date Apr 2, 2024
- ARDYNE HOLDINGS LIMITED
- David Stewart
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well abandonment
- Patent number 11,840,902
- Issue date Dec 12, 2023
- ARDYNE HOLDINGS LIMITED
- Alan Fairweather
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well abandonment and slot recovery
- Patent number 11,230,899
- Issue date Jan 25, 2022
- ARDYNE HOLDINGS LIMITED
- David Stewart
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Well Abandonment
- Publication number 20220333454
- Publication date Oct 20, 2022
- Ardyne Holdings Limited
- Alan Fairweather
- E21 - EARTH DRILLING MINING
Information Patent Application
Improvements In Or Relating To Well Abandonment and Slot Recovery
- Publication number 20220220820
- Publication date Jul 14, 2022
- Ardyne Holdings Limited
- David Stewart
- E21 - EARTH DRILLING MINING
Information Patent Application
Improvements In Or Relating To Well Abandonment and Slot Recovery
- Publication number 20210032948
- Publication date Feb 4, 2021
- Ardyne Holdings Limited
- David Stewart
- E21 - EARTH DRILLING MINING