Patents by Inventor Roland Demuth

Roland Demuth 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).

  • Heat-insulated conduit
    Patent number: 7472725
    Abstract: A heat-insulated conduit having at least one internal tube (1), a heat-insulating layer (2), an intermediate layer (3), a film (4) and a corrugated external tube (5).
    Type: Grant
    Filed: June 13, 2007
    Date of Patent: January 6, 2009
    Assignee: Brugg Rohr AG, Holding
    Inventors: Roberto Rudi, Robert Schneider, Roland Demuth
  • Heat-insulated conduit
    Publication number: 20070289654
    Abstract: A heat-insulated conduit having at least one internal tube (1), a heat-insulating layer (2), an intermediate layer (3), a film (4) and a corrugated external tube (5).
    Type: Application
    Filed: June 13, 2007
    Publication date: December 20, 2007
    Inventors: Roberto Rudi, Robert Schneider, Roland Demuth