Patents by Inventor Nathan R. Spencer

Nathan R. Spencer 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).

  • Footwear cleat
    Patent number: D515794
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: February 28, 2006
    Assignee: Softspikes, LLC
    Inventor: Nathan R. Spencer