Patents by Inventor Wolfgang Hicking

Wolfgang Hicking has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tubbing, tubbing ring and tunnel works
    Publication number: 20040197151
    Abstract: The invention relates to a tubbing (2) for a tubbing ring (1) used in underground tunnel works in which a front tubbing face (4) and a rear tubbing face (5) are provided. At least one tubbing face (4, 5) is provided in the shape of a spherical shell.
    Type: Application
    Filed: December 18, 2003
    Publication date: October 7, 2004
    Inventors: Johannes Dahl, Wolfgang Hicking, Dieter Neumann, Uwe Schumacher