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Kevin W. Seybert

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  • McKeesport, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Photochromic optical article
    • Patent number 7,452,611
    • Issue date Nov 18, 2008
    • Transitions Optical, Inc.
    • William P. Blackburn
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    Photochromic optical article
    • Publication number 20030165686
    • Publication date Sep 4, 2003
    • William P. Blackburn
    • G02 - OPTICS