Patents by Inventor Helmut Ofner

Helmut Ofner 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).

  • Spring element for a mattress
    Patent number: D707069
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: June 17, 2014
    Inventors: Ingrid Erlbeck, Helmut Ofner