TREA

Sean O'Brien

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  • Greenbelt, MD, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thin Loudspeaker
    • Patent number 6,496,586
    • Issue date Dec 17, 2002
    • New Transducers Limited
    • Michael A Hayes
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Decorative speaker cover
    • Patent number 6,142,254
    • Issue date Nov 7, 2000
    • Noise Cancellation Technologies, Inc.
    • David Claybaugh
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE