Patents by Inventor Chi Wan To

Chi Wan To 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: D493240
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: July 20, 2004
    Assignee: Germain Electronic Limited
    Inventor: Chi Wan To