Patents by Inventor Kwok Ching Leung

Kwok Ching Leung 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).

  • Handheld electronic device
    Patent number: D582407
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: December 9, 2008
    Assignee: Research In Motion Limited
    Inventors: Roman P. Rak, Todd Wood, Kwok Ching Leung
  • Handheld electronic device
    Patent number: D585889
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: February 3, 2009
    Assignee: Research in Motion Limited
    Inventors: Roman P. Rak, Jason T. Griffin, Kwok Ching Leung
  • Dual display hand-held electronic device
    Patent number: D586802
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: February 17, 2009
    Assignee: Research In Motion Limited
    Inventors: Archer Chi Kwong Wun, Kwok Ching Leung, Todd Andrew Wood
  • Handheld electronic device
    Patent number: D588127
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: March 10, 2009
    Assignee: Research in Motion Limited
    Inventors: Roman P. Rak, Jason T. Griffin, Kwok Ching Leung