TREA

John C. H. Chan

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    High temperature dual butterfly valve
    • Patent number 4,377,181
    • Issue date Mar 22, 1983
    • Houston Systems Manufacturing Co., Inc.
    • John C. H. Chan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Valve bonnet for high temperature service
    • Patent number 4,344,454
    • Issue date Aug 17, 1982
    • Houston Systems Manufacturing Co., Inc.
    • John C. H. Chan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...