TREA

David L. Adriaansen

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  • Boston, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Personal security alarm
    • Patent number D338844
    • Issue date Aug 31, 1993
    • Lifeline Systems, Inc.
    • Vincent J. Savio
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Home communicator for a personal emergency response system
    • Patent number D313363
    • Issue date Jan 1, 1991
    • Lifeline Systems, Inc.
    • Richard M. Reich
    • D10 - Measuring, testing, or signalling instruments
  • Information Patent Grant

    Cathode ray tube monitor
    • Patent number D310357
    • Issue date Sep 4, 1990
    • Computer Sports Systems, Inc.
    • Paul E. Brefka
    • D14 - Recording, communication, or information retrieval equipment