Patents by Inventor Sze Ki Au

Sze Ki Au 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).

  • Crayon holder
    Patent number: D714386
    Type: Grant
    Filed: August 14, 2013
    Date of Patent: September 30, 2014
    Assignee: Lai On Products (Industrial) Limited
    Inventor: Sze Ki Au
  • Crayon holder
    Patent number: D746377
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: December 29, 2015
    Assignee: LAI ON PRODUCTS (INDUSTRIAL) LIMITED
    Inventor: Sze Ki Au