TREA

Drew Kallen

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  • Gilbert, AZ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Voicecoil affixation
    • Patent number 9,025,809
    • Issue date May 5, 2015
    • Rockford Corporation
    • Drew Kallen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Low profile loudspeaker
    • Patent number 9,008,348
    • Issue date Apr 14, 2015
    • Rockford Corporation
    • Drew Kallen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Subwoofer
    • Patent number 7,088,841
    • Issue date Aug 8, 2006
    • Diamond Audio Technology, Inc.
    • Drew Kallen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

  • Information Patent Application

    LOUDSPEAKER SURROUND MOUNT
    • Publication number 20100303276
    • Publication date Dec 2, 2010
    • ROCKFORD CORPORATION
    • Drew Kallen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    Subwoofer
    • Publication number 20040086144
    • Publication date May 6, 2004
    • Diamond Audio Technology, Inc.
    • Drew Kallen
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE