Patents by Inventor Alex Duan

Alex Duan 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).

  • Liquid crystal display monitor
    Patent number: D458928
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: June 18, 2002
    Assignee: Topvision Display Technologies, Inc.
    Inventor: Alex Duan
  • Liquid crystal display monitor
    Patent number: D477319
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: July 15, 2003
    Assignee: Topvision Display Technologies, Inc.
    Inventor: Alex Duan
  • LCD multimedia monitor
    Patent number: D482033
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: November 11, 2003
    Assignee: Topvision Display Technologies, Inc.
    Inventor: Alex Duan
  • LCD multimedia monitor
    Patent number: D482034
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: November 11, 2003
    Assignee: Topvision Display Technologies, Inc.
    Inventor: Alex Duan
  • Liquid crystal display
    Patent number: D394248
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: May 12, 1998
    Assignee: Topvision Technologies, Inc.
    Inventor: Alex Duan