David Stewart

Person

  • Aberdeen, GB

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