TREA

Ralph Popp

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  • Pittsburgh, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cycling type of electronic battery charger
    • Patent number 4,039,920
    • Issue date Aug 2, 1977
    • Westinghouse Air Brake Company
    • Ralph Popp
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
  • Information Patent Grant

    Taper type of battery charger
    • Patent number 3,956,683
    • Issue date May 11, 1976
    • Westinghouse Air Brake Company
    • Ralph Popp
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER