Patents by Inventor David Hilgendorf

David Hilgendorf 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).

  • SHADE CUTTER
    Publication number: 20070277657
    Abstract: A shade cutter for trimming rotating window shades includes a larger opening to accommodate larger diameter shades, one blade for cutting both the slat and the shade, a mechanism to remove the shade pin, a protective cover for the blade, and a motor contained in the shade cutting machine base.
    Type: Application
    Filed: May 25, 2007
    Publication date: December 6, 2007
    Inventors: Dennis Hilgendorf, David Hilgendorf, David Rynes