Patents by Inventor Michael B. St. John

Michael B. St. John 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).

  • Fin for windsurfer and surfboard
    Patent number: D315772
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: March 26, 1991
    Inventor: Michael B. St. John
  • Bicycle shoe cleat
    Patent number: D316926
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: May 21, 1991
    Inventor: Michael B. St. John