TREA

Dieter Ockelmann

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  • Cologne, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Basic dyestuffs
    • Patent number 4,710,569
    • Issue date Dec 1, 1987
    • Bayer Aktiengesellschaft
    • Gunter Franke
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Copper-phthalocyanine dyestuffs
    • Patent number 4,647,409
    • Issue date Mar 3, 1987
    • Bayer Aktiengesellschaft
    • Manfred Groll
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    Cu-Pc dyestuffs
    • Patent number 4,537,721
    • Issue date Aug 27, 1985
    • Bayer Aktiengesellschaft
    • Manfred Groll
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...