Patents by Inventor James William Sit

James William Sit 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).

  • Seating ball
    Patent number: D835425
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: December 11, 2018
    Inventors: James William Sit, Jennifer Kolinski, Matthias Witteman, Klaus Gaterman