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Michael Kressner

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  • Odenthal, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Process for dyeing polyurethane plastics
    • Patent number 4,026,931
    • Issue date May 31, 1977
    • Bayer Aktiengesellschaft
    • Manfred Wiesel
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Process for dyeing polyurethane resins
    • Patent number 3,993,619
    • Issue date Nov 23, 1976
    • Bayer Aktiengesellschaft
    • Winfried Kruckenberg
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...