Patents by Inventor Wing Keung So

Wing Keung So 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).

  • Patent number: D435461
    Type: Grant
    Filed: January 4, 2000
    Date of Patent: December 26, 2000
    Assignee: Sweda Limited
    Inventor: Wing Keung So