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Barbara Berkowitz

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  • Gilbertsville, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Roll roofing
    • Patent number 9,062,459
    • Issue date Jun 23, 2015
    • CertainTeed Corporation
    • Barbara Berkowitz
    • E04 - BUILDING

Patents Applicationslast 30 patents

  • Information Patent Application

    ROLL ROOFING
    • Publication number 20150259925
    • Publication date Sep 17, 2015
    • Certainteed Corporation
    • Barbara Berkowitz
    • E04 - BUILDING
  • Information Patent Application

    Roll Roofing
    • Publication number 20100071291
    • Publication date Mar 25, 2010
    • Certainteed Corporation
    • Barbara Berkowitz
    • E04 - BUILDING
  • Information Patent Application

    Roll Roofing
    • Publication number 20070267310
    • Publication date Nov 22, 2007
    • Barbara Berkowitz
    • E04 - BUILDING