TREA

Manfred Groll

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  • Cologne, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polycyclic dyestuffs
    • Patent number 4,024,144
    • Issue date May 17, 1977
    • Bayer Aktiengesellschaft
    • Manfred Groll
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Reactive dyestuffs
    • Patent number 3,989,692
    • Issue date Nov 2, 1976
    • Bayer Aktiengesellschaft
    • Horst Jager
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Quinophthalone dyestuffs
    • Patent number 3,932,419
    • Issue date Jan 13, 1976
    • Bayer Aktiengesellschaft
    • Manfred Groll
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...