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Roy Y. Chang

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  • Wilmette, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Torsional damper for air conditioning compressor
    • Patent number 5,219,273
    • Issue date Jun 15, 1993
    • General Motors Corporation
    • Roy Y. Chang
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Torque cushion for electromagnetic clutch
    • Patent number 5,195,625
    • Issue date Mar 23, 1993
    • General Motors Corporation
    • Roy Y. Chang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...