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Lawrence A. Brown

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  • Pekin, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Chimney damper
    • Patent number 9,091,439
    • Issue date Jul 28, 2015
    • Lawrence A. Brown
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Grant

    Chimney damper
    • Patent number 7,422,519
    • Issue date Sep 9, 2008
    • Lawrence A. Brown
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

  • Information Patent Application

    Chimney damper
    • Publication number 20120028558
    • Publication date Feb 2, 2012
    • Lawrence A. Brown
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
  • Information Patent Application

    Chimney damper
    • Publication number 20050250433
    • Publication date Nov 10, 2005
    • Lawrence A. Brown
    • F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES