Patents by Inventor Stefan Sandman

Stefan Sandman 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).

  • Training tool
    Patent number: D655356
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: March 6, 2012
    Inventor: Stefan Sandman