TREA

Drew Kallen

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  • Buena Park, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electromagnetic transducer
    • Patent number 5,624,155
    • Issue date Apr 29, 1997
    • Aura Systems, Inc.
    • Jeffrey Bluen
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
  • Information Patent Grant

    Electromagnetic transducer
    • Patent number 5,424,592
    • Issue date Jun 13, 1995
    • Aura Systems, Inc.
    • Jeffrey Bluen
    • B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL