TREA

Hans-Dieter Herrmann

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  • Marl, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Multilayer plastic pipe having good adhesion between layers
    • Patent number 6,386,240
    • Issue date May 14, 2002
    • Degussa-Huels Aktiengesellschaft
    • Stefan Roeber
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Multilayer plastic pipe
    • Patent number 5,512,342
    • Issue date Apr 30, 1996
    • Huels Aktiengesellschaft
    • Stefan Rober
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Multilayer plastic pipe
    • Patent number 5,500,263
    • Issue date Mar 19, 1996
    • Huels Aktiengesellschaft
    • Stefan Rober
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Multilayer plastic pipe
    • Patent number 5,478,620
    • Issue date Dec 26, 1995
    • Huels Aktiengesellschaft
    • Joachim Mugge
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multilayer plastic pipe
    • Patent number 5,474,822
    • Issue date Dec 12, 1995
    • Huels Aktiengesellschaft
    • Stefan Rober
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Multilayer plastic pipe
    • Patent number 5,449,024
    • Issue date Sep 12, 1995
    • Huels Aktiengesellschaft
    • Stefan Rober
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Multilayer plastic pipe
    • Patent number 5,404,915
    • Issue date Apr 11, 1995
    • Huels Aktiengesellschaft
    • Joachim Mugge
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    Multilayer plastic pipe comprising an outer polyamide layer and a l...
    • Patent number 5,313,987
    • Issue date May 24, 1994
    • Huels Aktiengesellschaft
    • Stefan Rober
    • B32 - LAYERED PRODUCTS