Patents by Inventor Yau Hon Chan

Yau Hon Chan 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).

  • Clip-on booklight
    Patent number: D544124
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: June 5, 2007
    Assignee: Polylink Hong Kong
    Inventor: Yau Hon Chan
  • LED folding magnifier
    Patent number: D550264
    Type: Grant
    Filed: January 4, 2006
    Date of Patent: September 4, 2007
    Assignee: Poly Link Hong Kong
    Inventor: Yau Hon Chan
  • Combined retractable lighted magnifier bar and flashlight
    Patent number: D402069
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: December 1, 1998
    Assignee: Polylink Hong Kong
    Inventor: Yau Hon Chan
  • Folding magnifier with light
    Patent number: D406853
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: March 16, 1999
    Assignee: Polylink Hong Kong
    Inventor: Yau Hon Chan