TREA

Olen R. Long

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  • Celina, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Side pocket mandrel
    • Patent number RE32469
    • Issue date Aug 11, 1987
    • Otis Engineering Corporation
    • David T. Merritt
    • 166 - Wells
  • Information Patent Grant

    Flow control system
    • Patent number 4,420,044
    • Issue date Dec 13, 1983
    • Otis Engineering Corporation
    • William H. Pullin
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Side pocket mandrel
    • Patent number 4,416,330
    • Issue date Nov 22, 1983
    • Otis Engineering Corporation
    • David T. Merritt
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Parking tool for pumpdown well completion system
    • Patent number 4,398,601
    • Issue date Aug 16, 1983
    • Otis Engineering Corporation
    • Kenneth L. Schwendemann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Well system
    • Patent number 4,365,671
    • Issue date Dec 28, 1982
    • Otis Engineering Corporation
    • Olen R. Long
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Compensating bridge plug
    • Patent number 4,299,281
    • Issue date Nov 10, 1981
    • Otis Engineering Corporation
    • Olen R. Long
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Locating system
    • Patent number 4,126,179
    • Issue date Nov 21, 1978
    • Otis Engineering Corporation
    • Olen R. Long
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Well flow system and method
    • Patent number 4,125,162
    • Issue date Nov 14, 1978
    • Otis Engineering Corporation
    • David L. Groves
    • E21 - EARTH DRILLING MINING