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Josef Berzen

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  • Oberhausen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyethylene molding compositions
    • Patent number 5,656,686
    • Issue date Aug 12, 1997
    • Hoechst Aktiengesellschaft
    • Hermann van Laak
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Neutron-absorbing materials
    • Patent number 5,262,463
    • Issue date Nov 16, 1993
    • Hoechst Aktiengesellschaft
    • Josef Berzen
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Striking cap lining
    • Patent number 4,345,656
    • Issue date Aug 24, 1982
    • Ruhrchemie AG
    • Josef Berzen
    • E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
  • Information Patent Grant

    Process for the manufacture of high molecular copolymerisates of et...
    • Patent number 4,138,540
    • Issue date Feb 6, 1979
    • Ruhrchemie Aktiengesellschaft
    • Siegfried Lutze
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...