Patents by Inventor John F. Riggs

John F. Riggs 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).

  • Electrostud
    Patent number: 4512129
    Abstract: A structural member composed of two separate conformations, when joined together form a rectangular column with three separate compartments.
    Type: Grant
    Filed: July 12, 1982
    Date of Patent: April 23, 1985
    Inventor: John F. Riggs