TREA

Andreas Guentner

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  • Frankenthal, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tryptanthrine derivatives
    • Patent number 5,420,259
    • Issue date May 30, 1995
    • BASF Aktiengesellschaft
    • Andreas Guentner
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Benzopyrans for use in recording systems
    • Patent number 4,966,983
    • Issue date Oct 30, 1990
    • BASF Aktiengesellschaft
    • Andreas Guentner
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Benzopyran derivatives
    • Patent number 4,958,021
    • Issue date Sep 18, 1990
    • BASF Aktiengesellschaft
    • Andreas Guentner
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Carbazole containing benzopyrans
    • Patent number 4,841,050
    • Issue date Jun 20, 1989
    • BASF Aktiengesellschaft
    • Andreas Guentner
    • C07 - ORGANIC CHEMISTRY