Patents by Inventor Sannie Chan Lai-shan

Sannie Chan Lai-shan 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).

  • Infant walker
    Patent number: D472853
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: April 8, 2003
    Assignee: VTech Electronics, Ltd.
    Inventor: Sannie Chan Lai-shan
  • Electronic learning aid housing
    Patent number: D485585
    Type: Grant
    Filed: August 15, 2001
    Date of Patent: January 20, 2004
    Assignee: Vtech Electronics, Ltd.
    Inventor: Sannie Chan Lai-shan