Patents by Inventor Kenneth John Spengler

Kenneth John Spengler 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: D601635
    Type: Grant
    Filed: September 10, 2008
    Date of Patent: October 6, 2009
    Inventor: Kenneth John Spengler