Patents by Inventor Shiu Tong Li

Shiu Tong Li 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).

  • High frequency vibration toothbrush
    Patent number: D484312
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: December 30, 2003
    Assignee: Oasis Global Limited
    Inventor: Shiu Tong Li