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Gerald A. Marsh

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ring set ball coupling
    • Patent number 4,005,881
    • Issue date Feb 1, 1977
    • HydroTech International, Inc.
    • James A. Burton
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Ball and socket pipe coupling
    • Patent number 3,997,197
    • Issue date Dec 14, 1976
    • HydroTech International, Inc.
    • Gerald A. Marsh
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Pipe coupling
    • Patent number 3,986,728
    • Issue date Oct 19, 1976
    • HydroTech International, Inc.
    • Gerald A. Marsh
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...