Patents by Inventor John W. Stangle

John W. Stangle 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).

  • Spa hydrotherapy pool
    Patent number: D244314
    Type: Grant
    Filed: September 17, 1975
    Date of Patent: May 10, 1977
    Inventor: John W. Stangle
  • Spa hydrotherapy pool
    Patent number: D251016
    Type: Grant
    Filed: April 18, 1977
    Date of Patent: February 6, 1979
    Inventor: John W. Stangle