TREA

Edward Tom

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  • Philadelphia, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Passive infrared detector
    • Patent number 5,107,120
    • Issue date Apr 21, 1992
    • Pennwalt Corporation
    • Edward Tom
    • G08 - SIGNALLING
  • Information Patent Grant

    Synchronized sound producing amusement device
    • Patent number 4,904,222
    • Issue date Feb 27, 1990
    • Pennwalt Corporation
    • Raymond F. Gastgeb
    • A63 - SPORTS GAMES AMUSEMENTS
  • Information Patent Grant

    Hail sensor
    • Patent number 4,904,894
    • Issue date Feb 27, 1990
    • Pennwalt Corporation
    • John C. Henry
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Vibration sensing apparatus
    • Patent number 4,870,868
    • Issue date Oct 3, 1989
    • Pennwalt Corporation
    • Raymond F. Gastgeb
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    Security system
    • Patent number 4,706,069
    • Issue date Nov 10, 1987
    • RCA Corporation
    • Edward Tom
    • G08 - SIGNALLING