Allan Richardson

Person

  • Calgary, CA

Patents Grantslast 30 patents

  • Information Patent Grant

    Power tong wrench

    • Patent number 6,082,225
    • Issue date Jul 4, 2000
    • Canrig Drilling Technology, Ltd.
    • Allan S. Richardson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Portable top drive

    • Patent number 6,024,181
    • Issue date Feb 15, 2000
    • Nabors Industries, Inc.
    • Allan S. Richardson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Portable top drive

    • Patent number 5,755,296
    • Issue date May 26, 1998
    • Nabors Industries, Inc.
    • Allan S. Richardson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Oil well rig with pipe handling apparatus

    • Patent number 4,951,759
    • Issue date Aug 28, 1990
    • Canrig Manufacturing Ltd.
    • Allan Richardson
    • E21 - EARTH DRILLING MINING