Patents by Inventor John C. Seidel

John C. Seidel 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).

  • Wind propulsion apparatus
    Patent number: 4533159
    Abstract: Wind propulsion apparatus for a skier or skater comprises a sail secured to its upper end to a mast and having a pair of sheets at its lower end trained about guide pulleys secured to the user's boots. The sheets may be adjustably secured to retainers carried by the user. The mast has a mount at its lower end which may be supported on either of the user's feet.
    Type: Grant
    Filed: April 27, 1984
    Date of Patent: August 6, 1985
    Inventor: John C. Seidel