Patents by Inventor Kwok Sui Shing

Kwok Sui Shing 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).

  • Double walled bowl
    Patent number: D640100
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: June 21, 2011
    Assignee: The Vollrath Company, L.L.C.
    Inventor: Kwok Sui Shing
  • Double walled bowl
    Patent number: D640899
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: July 5, 2011
    Assignee: The Vollrath Company, L.L.C.
    Inventor: Kwok Sui Shing