TREA

Frank Weissortel

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  • Donau, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spiro compounds, and their use
    • Patent number 6,861,567
    • Issue date Mar 1, 2005
    • Covion Organic Semiconductors GmbH
    • Hubert Spreitzer
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Photovoltaic cell
    • Patent number 6,335,480
    • Issue date Jan 1, 2002
    • Aventis Research & Technologies GmbH & Co.
    • Udo Bach
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    Spiro compounds, and their use
    • Publication number 20030065190
    • Publication date Apr 3, 2003
    • Hubert Spreitzer
    • C07 - ORGANIC CHEMISTRY