Patents by Inventor Helmut Koerner

Helmut Koerner 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).

  • Patent number: D498309
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: November 9, 2004
    Assignee: Rehau AG & Co.
    Inventors: Helmut Koerner, Stefan Lang