TREA

Robert L. Alder

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  • Irvine, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    In-hole motor tachometer
    • Patent number 4,545,241
    • Issue date Oct 8, 1985
    • Smith International, Inc.
    • Robert L. Alder
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Automatic drilling process and apparatus
    • Patent number 4,491,186
    • Issue date Jan 1, 1985
    • Smith International, Inc.
    • Robert L. Alder
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Valve with circulation timer
    • Patent number 4,476,894
    • Issue date Oct 16, 1984
    • Smith International, Inc.
    • Robert L. Alder
    • E21 - EARTH DRILLING MINING