Patents by Inventor John Stegmann

John Stegmann 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).

  • Puzzle with twelve pieces
    Patent number: D727438
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: April 21, 2015
    Inventor: John Stegmann