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Nu Yu

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  • Oberursel, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Organic electroluminescent device
    • Patent number 5,919,579
    • Issue date Jul 6, 1999
    • Hoechst Aktiengesellschaft
    • Wen-Bing Kang
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Organic electroluminescent device
    • Patent number 5,871,854
    • Issue date Feb 16, 1999
    • Hoechst Aktiengesellschaft
    • Akihiko Tokida
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...