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Raymond C. Liu

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  • Norwalk, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    High voltage operational amplifier
    • Patent number 4,580,104
    • Issue date Apr 1, 1986
    • The Perkin-Elmer Corporation
    • Raymond C. Liu
    • H03 - BASIC ELECTRONIC CIRCUITRY
  • Information Patent Grant

    Dual stepping angle stepper motor drive
    • Patent number 4,145,644
    • Issue date Mar 20, 1979
    • The Perkin-Elmer Corporation
    • Raymond C. Liu
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER