Patents by Inventor Mark C. Jansen

Mark C. Jansen 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).

  • Softspike overshoes
    Patent number: 6568101
    Abstract: The present invention provides new softspike overshoes for wearing over an existing shoe. The new softspike overshoes are suited for use in playing sports and are particularly suited for playing golf. The softspike overshoes are flexible yet sufficiently form retentive to securely hold their proper position on the shoe while playing golf. The softspike overshoe is a one-piece overshoe with soft spikes integrally molded into the bottom of the sole of the overshoe.
    Type: Grant
    Filed: June 3, 1998
    Date of Patent: May 27, 2003
    Inventors: Mark C. Jansen, Darcy L. Jansen