TREA

Grant Carmichael

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  • Grand Rapids, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electrical device
    • Patent number D652392
    • Issue date Jan 17, 2012
    • Leviton Manufacturing Co., Inc.
    • Paul Duckworth
    • D13 - Equipment for production, distribution, or transformation of energy
  • Information Patent Grant

    Electrical device
    • Patent number D640640
    • Issue date Jun 28, 2011
    • Leviton Manufacturing Co., Inc.
    • Paul Duckworth
    • D13 - Equipment for production, distribution, or transformation of energy