TREA

Wing C. Quan

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  • Waldwick, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Voice-recognition elevator security system
    • Patent number 4,534,056
    • Issue date Aug 6, 1985
    • Westinghouse Electric Corp.
    • Michal M. Feilchenfeld
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator system
    • Patent number 4,436,185
    • Issue date Mar 13, 1984
    • Westinghouse Electric Corp.
    • Richard H. Ludwig
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator system
    • Patent number 4,317,506
    • Issue date Mar 2, 1982
    • Westinghouse Electric Corp.
    • Wing C. Quan
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Elevator system
    • Patent number 4,084,661
    • Issue date Apr 18, 1978
    • Westinghouse Electric Corporation
    • Wing C. Quan
    • B66 - HOISTING LIFTING HAULING