TREA

Jochen Westphal

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  • Duesseldorf, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Colorants obtained by reacting a NH.sub.2 -containing dyestuff with...
    • Patent number 4,978,747
    • Issue date Dec 18, 1990
    • Bayer Aktiengesellschaft
    • Karl-Arnold Weber
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Sulfo-group-containing trisazo dyestuffs
    • Patent number 4,670,548
    • Issue date Jun 2, 1987
    • Bayer Aktiengesellschaft
    • Jochen Westphal
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Azo dyestuffs
    • Patent number 4,339,380
    • Issue date Jul 13, 1982
    • Bayer Aktiengesellschaft
    • Herbert Hugl
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...