TREA

Walter R. Berger

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Annunciator with internal tachometer
    • Patent number RE38656
    • Issue date Nov 23, 2004
    • Murphy Industries, Inc.
    • Walter R. Berger
    • 307 - Electrical transmission or interconnection systems
  • Information Patent Grant

    Annunciator with internal tachometer
    • Patent number 6,144,116
    • Issue date Nov 7, 2000
    • Murphy Industries, Inc.
    • Walter R. Berger
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Solar powered annunciator
    • Patent number 5,563,456
    • Issue date Oct 8, 1996
    • Murphy Management Inc.
    • Walter R. Berger
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Solar powered annuciator
    • Patent number 5,438,225
    • Issue date Aug 1, 1995
    • Murphy Management Inc.
    • Walter R. Berger
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS