TREA

Patrick E. McDonald

Follow

Person

  • Houston, TX, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Tubular pin configuration to prevent galling while ensuring sealing
    • Patent number 4,736,967
    • Issue date Apr 12, 1988
    • The Hydril Company
    • Keith C. Mott
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Pipe joint
    • Patent number 4,676,529
    • Issue date Jun 30, 1987
    • Hydril Company
    • Patrick E. McDonald
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Threaded connector
    • Patent number 4,373,754
    • Issue date Feb 15, 1983
    • Hydril Company
    • Charles A. Bollfrass
    • E21 - EARTH DRILLING MINING