TREA

Wolfgang Cohnen

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  • Krefeld, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Blowing agent mixture
    • Patent number 4,065,401
    • Issue date Dec 27, 1977
    • Bayer Aktiengesellschaft
    • Wolfgang Cohnen
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
  • Information Patent Grant

    Polymers and copolymers based on alkenoyl-oxybenzylidene-malonic es...
    • Patent number 3,943,094
    • Issue date Mar 9, 1976
    • Bayer Aktiengesellschaft
    • Dieter Margotte
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...