TREA

Hans Koopman

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  • Waterloo, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Elastomer tire sealing ring
    • Patent number 8,757,231
    • Issue date Jun 24, 2014
    • E. I. Du Pont de Nemours and Company
    • Hans Koopman
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    ELASTOMER TIRE SEALING RING
    • Publication number 20100186864
    • Publication date Jul 29, 2010
    • Hans Koopman
    • B60 - VEHICLES IN GENERAL