TREA

Ernest P. Fisher Jr.

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  • Carrollton, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Molded ring seal with end support rings
    • Patent number 4,630,833
    • Issue date Dec 23, 1986
    • Otis Engineering Corporation
    • William G. Boyle
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Differential gas lift valve
    • Patent number 4,489,743
    • Issue date Dec 25, 1984
    • Otis Engineering Corporation
    • Carlos R. Canalizo
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Seals
    • Patent number 4,483,543
    • Issue date Nov 20, 1984
    • Otis Engineering Corporation
    • Ernest P. Fisher
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Shifting tool
    • Patent number 4,436,152
    • Issue date Mar 13, 1984
    • Otis Engineering Corporation
    • Ernest P. Fisher
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Well flow control apparatus
    • Patent number 4,432,416
    • Issue date Feb 21, 1984
    • Otis Engineering Corporation
    • William R. Welch
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Single line deep depth safety valve
    • Patent number 4,428,557
    • Issue date Jan 31, 1984
    • Otis Engineering Corporation
    • John H. Yonker
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Landing nipple
    • Patent number 4,381,822
    • Issue date May 3, 1983
    • Otis Engineering Corporation
    • Ernest P. Fisher
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Well tool
    • Patent number 4,378,839
    • Issue date Apr 5, 1983
    • Otis Engineering Corporation
    • Ernest P. Fisher
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Locking mandrel
    • Patent number 4,362,211
    • Issue date Dec 7, 1982
    • Otis Engineering Corporation
    • Ernest P. Fisher
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Velocity operated standing valve
    • Patent number 4,352,366
    • Issue date Oct 5, 1982
    • Otis Engineering Corporation
    • Ernest P. Fisher
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Landing nipple
    • Patent number 4,294,315
    • Issue date Oct 13, 1981
    • Otis Engineering Corporation
    • John H. Yonker
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Surface controlled subsurface safety valve
    • Patent number 4,193,450
    • Issue date Mar 18, 1980
    • Otis Engineering Corporation
    • Ernest P. Fisher
    • E21 - EARTH DRILLING MINING