TREA

Gerrit Heidemann

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  • Oldenzaal, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fiber reinforced sandwich tube
    • Patent number 4,080,999
    • Issue date Mar 28, 1978
    • Industriele Onderneming Wavin N.V.
    • Hein Bulters
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Connection for foam insulated pipes
    • Patent number 4,019,761
    • Issue date Apr 26, 1977
    • Industriele Onderneming Wavin N.V.
    • Gerrit Heidemann
    • C07 - ORGANIC CHEMISTRY
  • Information Patent Grant

    Connections for insulated pipes
    • Patent number 3,992,237
    • Issue date Nov 16, 1976
    • Industriele Onderneming Wavin N.V.
    • Willem Gerholt
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...