Patents Assigned to Tung Yung International Limited
  • Two-hole paper punch
    Patent number: D615593
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: May 11, 2010
    Assignee: Tung Yung International Limited
    Inventor: Chan Siu Leung
  • Stapler
    Patent number: D617164
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 8, 2010
    Assignee: Tung Yung International Limited
    Inventor: Chan Siu Leung
  • Stapler
    Patent number: D617165
    Type: Grant
    Filed: May 26, 2009
    Date of Patent: June 8, 2010
    Assignee: Tung Yung International Limited
    Inventor: Chan Siu Leung
  • Clipboard
    Patent number: D636818
    Type: Grant
    Filed: January 28, 2010
    Date of Patent: April 26, 2011
    Assignee: Tung Yung International Limited
    Inventor: Chan Siu Leung