Patents by Inventor Wai Chi Man

Wai Chi Man 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).

  • Electric torch
    Patent number: D504187
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: April 19, 2005
    Assignee: Stax Limited
    Inventor: Wai Chi Man
  • Electric torch
    Patent number: D507839
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: July 26, 2005
    Assignee: Stax Limited
    Inventor: Wai Chi Man
  • Electric torch
    Patent number: D508748
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: August 23, 2005
    Assignee: Stax Limited
    Inventor: Wai Chi Man
  • Battery lamp
    Patent number: D458399
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: June 4, 2002
    Assignee: Stax Limited
    Inventor: Wai Chi Man
  • Battery lamp
    Patent number: D459011
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: June 18, 2002
    Assignee: Stax Limited
    Inventor: Wai Chi Man
  • Battery lamp
    Patent number: D464452
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: October 15, 2002
    Assignee: Stax Limited
    Inventor: Wai Chi Man
  • Electric torch
    Patent number: D475151
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: May 27, 2003
    Assignee: Tung Fat Industries Limited
    Inventor: Wai Chi Man
  • Electric torch
    Patent number: D480167
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: September 30, 2003
    Assignee: Stax Limited
    Inventor: Wai Chi Man
  • Flashlight
    Patent number: D421145
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: February 22, 2000
    Assignee: Stax Ltd.
    Inventor: Wai Chi Man
  • Battery key chain light
    Patent number: D422135
    Type: Grant
    Filed: May 10, 1999
    Date of Patent: April 4, 2000
    Assignee: Stax Ltd.
    Inventor: Wai Chi Man
  • Flashlight
    Patent number: D423704
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: April 25, 2000
    Inventor: Wai Chi Man
  • Flashlight
    Patent number: D428505
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: July 18, 2000
    Assignee: Stax Ltd.
    Inventor: Wai Chi Man