Patents by Inventor Chung-Sum Frederick Leung

Chung-Sum Frederick 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).

  • LED flashlight lantern
    Patent number: 7677759
    Abstract: A combination flashlight and lantern includes a body having a first axis, an internally reflective flashlight cup surrounding the first axis and a lens covering the cup. An externally reflective cone surrounds the first axis and has an apex through which the first axis passes. A drum is located between the cup and cone and pivots about a second axis that is normal to the first axis. An LED is mounted to the drum and directed radially from the second axis such that in a first orientation of the drum, the LED directed toward the apex of the cone and in a second orientation of the drum, the LED is directed at the lens. In a third orientation of the drum, the LED is directed perpendicularly to the first axis toward the shroud.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: March 16, 2010
    Assignee: Create Limited
    Inventor: Chung-Sum Frederick Leung
  • Lantern
    Patent number: D479620
    Type: Grant
    Filed: October 25, 2002
    Date of Patent: September 9, 2003
    Assignee: Create Ltd.
    Inventor: Chung-Sum Frederick Leung
  • LED portable lantern
    Patent number: D747022
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: January 5, 2016
    Assignee: Create Limited
    Inventor: Chung-Sum Frederick Leung