Patents by Inventor Lee Wan Tat

Lee Wan Tat 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).

  • Video game console
    Patent number: D503750
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: April 5, 2005
    Assignee: VTech Electronics Ltd.
    Inventors: Donny Leung Chi Kit, Lee Wan Tat
  • Joy stick with rotational element
    Patent number: D508052
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: August 2, 2005
    Assignee: Vtech Electronics Ltd.
    Inventors: Donny Leung Chi Kit, Lee Wan Tat