TREA

Dieter Wiegner

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  • Odenthal, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mixtures of blue azo disperse dyestuffs
    • Patent number 5,160,348
    • Issue date Nov 3, 1992
    • Bayer Aktiengesellschaft
    • Manfred Hoppe
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Red mixtures of disperse azo dyestuffs
    • Patent number 4,968,318
    • Issue date Nov 6, 1990
    • Bayer Aktiengesellschaft
    • Dieter Wiegner
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Mixtures of disperse dyestuffs
    • Patent number 4,523,926
    • Issue date Jun 18, 1985
    • Bayer Aktiengesellschaft
    • Horst Brandt
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Dyestuff mixtures, a process for their preparation and a process fo...
    • Patent number 4,374,642
    • Issue date Feb 22, 1983
    • Bayer Aktiengesellschaft
    • Horst Brandt
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...