TREA

Friedrich Hoppmann

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  • Hemmingen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Railway bogie
    • Patent number 7,934,458
    • Issue date May 3, 2011
    • AB SKF
    • Volker Gedenk
    • B61 - RAILWAYS
  • Information Patent Grant

    Spring element for rail vehicles
    • Patent number 7,484,719
    • Issue date Feb 3, 2009
    • ContiTech Luftfedersysteme GmbH
    • Volker Gedenk
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Railway bogie
    • Publication number 20070175356
    • Publication date Aug 2, 2007
    • AB SKF
    • Volker Gedenk
    • B61 - RAILWAYS
  • Information Patent Application

    Spring element for rail vehicles
    • Publication number 20070158886
    • Publication date Jul 12, 2007
    • Volker Gedenk
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...