TREA

Emil E. Dopyera

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Swivel coupling element
    • Patent number 4,618,173
    • Issue date Oct 21, 1986
    • Big-Inch Marine Systems, Inc.
    • Emil E. Dopyera
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Swivel coupling element
    • Patent number 4,530,526
    • Issue date Jul 23, 1985
    • Big-Inch Marine Systems, Inc.
    • Emil E. Dopyera
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Swivel coupling element
    • Patent number 4,381,871
    • Issue date May 3, 1983
    • Emil E. Dopyera
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Locking slip joint and method of use
    • Patent number 4,178,020
    • Issue date Dec 11, 1979
    • Big-Inch Marine Systems, Inc.
    • Emil E. Dopyera
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...