TREA

Wiebren D. H. Kornelis

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  • Steenwijkerwold, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of molding a plastic lid with barrier layer
    • Patent number 5,037,595
    • Issue date Aug 6, 1991
    • Kornelis' Kunsthars Producten Industrie BV
    • Wiebren D. H. Kornelis
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Closure cap with sealing ring
    • Patent number 4,244,481
    • Issue date Jan 13, 1981
    • Kornelis' Kunsthars Producten Industrie BV
    • Wiebren D. H. Kornelis
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL