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Rolf Wiedermann

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  • Bergisch-Gladbach, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Compositions containing hydroxyl groups and their use for the produ...
    • Patent number 4,046,742
    • Issue date Sep 6, 1977
    • Bayer Aktiengesellschaft
    • Erich Eimers
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polyguanidine foams
    • Patent number 3,941,726
    • Issue date Mar 2, 1976
    • Bayer Aktiengesellschaft
    • Rolf Wiedermann
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...