Patents by Inventor Jochen Helfert

Jochen Helfert 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).

  • Machine housing with contrasting portion
    Patent number: D616928
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: June 1, 2010
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Stephan Beisser, Jochen Helfert