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Hans-Samuel Bien

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Patents Grantslast 30 patents

  • Information Patent Grant

    Preparation of aminoanthraquinones from nitroanthraquinones
    • Patent number 4,076,736
    • Issue date Feb 28, 1978
    • Bayer Aktiengesellschaft
    • Karl-Julius Reubke
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Reactive dyestuffs containing urea alkylene linkage between chromop...
    • Patent number 4,065,446
    • Issue date Dec 27, 1977
    • Bayer Aktiengesellschaft
    • Hans-Samuel Bien
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Anthraquinone compounds
    • Patent number 4,056,544
    • Issue date Nov 1, 1977
    • Bayer Aktiengesellschaft
    • Walter Hohmann
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Anthraquinone dyestuffs
    • Patent number 4,045,457
    • Issue date Aug 30, 1977
    • Bayer Aktiengesellschaft
    • Gunter Gehrke
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Process for the preparation of anthraquinone compounds
    • Patent number 4,041,053
    • Issue date Aug 9, 1977
    • Bayer Aktiengesellschaft
    • Helmut Herzog
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    1-Amino-2-(bromophenoxy-alkoxy)-4-hydroxy anthraquinone dyestuffs
    • Patent number 4,036,862
    • Issue date Jul 19, 1977
    • Bayer Aktiengesellschaft
    • Volker Hederich
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • 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

    Azo dyestuffs containing 6-fluoro-pyrimidinyl 4-reactive group
    • Patent number 4,007,164
    • Issue date Feb 8, 1977
    • Bayer Aktiengesellschaft
    • Hans-Samuel Bien
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Process for the preparation of halogenoanthraquinones
    • Patent number 4,006,171
    • Issue date Feb 1, 1977
    • Bayer Aktiengesellschaft
    • Norbert Majer
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Nitroanthraquinones
    • Patent number 4,000,167
    • Issue date Dec 28, 1976
    • Bayer Aktiengesellschaft
    • Walter Hohmann
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Nitroanthraquinones
    • Patent number 3,989,450
    • Issue date Nov 2, 1976
    • Bayer Aktiengesellschaft
    • Walter Hohmann
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Anthraquinone dyestuffs containing sulphonic acid groups
    • Patent number 3,980,677
    • Issue date Sep 14, 1976
    • Bayer Aktiengesellschaft
    • Walter Hohmann
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Polycyclic dyestuffs
    • Patent number 3,979,413
    • Issue date Sep 7, 1976
    • Bayer Aktiengesellschaft
    • Helmut Seidler
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Grant

    Anthraquinone dyestuffs
    • Patent number 3,971,812
    • Issue date Jul 27, 1976
    • Bayer Aktiengesellschaft
    • Walter Hohmann
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Grant

    Process for the manufacture of 1-nitro-anthraquinone
    • Patent number 3,932,473
    • Issue date Jan 13, 1976
    • Bayer Aktiengesellschaft
    • Erich Klauke
    • C07 - ORGANIC CHEMISTRY
  • 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...