Patents by Inventor Yuen Tung Kwok

Yuen Tung Kwok 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).

  • Lighter
    Patent number: D501273
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: January 25, 2005
    Assignee: John Gibson Enterprises INC
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D504976
    Type: Grant
    Filed: July 27, 2004
    Date of Patent: May 10, 2005
    Assignee: Kwong Chak Fat Manufactory Limited
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D507150
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: July 12, 2005
    Assignee: John Gibson Enterprises INC
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D509620
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: September 13, 2005
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D511860
    Type: Grant
    Filed: October 19, 2004
    Date of Patent: November 22, 2005
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D512178
    Type: Grant
    Filed: June 30, 2004
    Date of Patent: November 29, 2005
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D513340
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: December 27, 2005
    Assignee: John Gibson Enterprises INC
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D470625
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: February 18, 2003
    Assignee: Kwong Chak Fat Lighter Co. Ltd.
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D471315
    Type: Grant
    Filed: June 11, 2002
    Date of Patent: March 4, 2003
    Assignee: Kwong Chak Fat Lighter Co. Ltd.
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D544145
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: June 5, 2007
    Assignee: Kwong Chak Fat Manufactory Limited
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D553291
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: October 16, 2007
    Assignee: Kwong Chak Fat Manufactory Limited
    Inventor: Yuen Tung Kwok
  • Butane lantern
    Patent number: D560010
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: January 15, 2008
    Assignee: Kwong Chak Fat Manufactory Ltd.
    Inventor: Yuen Tung Kwok
  • Flame lighter
    Patent number: D561387
    Type: Grant
    Filed: June 6, 2007
    Date of Patent: February 5, 2008
    Assignee: Kwong Chak Fat Manufactory Ltd.
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D483520
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: December 9, 2003
    Assignee: Kwong Chak Fat Lighter Co. Ltd.
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D571502
    Type: Grant
    Filed: August 22, 2007
    Date of Patent: June 17, 2008
    Assignee: Kwong Chak Fat Manufactory Ltd.
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D573300
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: July 15, 2008
    Assignee: Kwong Chak Fat Manufactory Ltd.
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D489224
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: May 4, 2004
    Assignee: John Gibson Enterprises INC
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D493913
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: August 3, 2004
    Assignee: John Gibson Enterprises INC
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D498558
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: November 16, 2004
    Assignee: John Gibson Enterprises INC
    Inventor: Yuen Tung Kwok
  • Lighter
    Patent number: D498874
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: November 23, 2004
    Assignee: John Gibson Enterprises Inc
    Inventor: Yuen Tung Kwok