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Stefan E. L. Helsemans

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Patents Grantslast 30 patents

  • Information Patent Grant

    Polyurethane foams
    • Patent number 5,418,261
    • Issue date May 23, 1995
    • Imperial Chemical Industries PLC
    • Stefan E. L. Helsemans
    • C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...