Patents Assigned to Nelson Jewellery Arts Company Ltd.
  • Star shape diamond
    Patent number: D505356
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: May 24, 2005
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Lemon shaped diamond
    Patent number: D513205
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: December 27, 2005
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Nelson Chi Kai Ho
  • Almond shaped diamond
    Patent number: D514015
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: January 31, 2006
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Nelson Chi Kai Ho
  • Jewelry setting
    Patent number: D533104
    Type: Grant
    Filed: December 21, 2005
    Date of Patent: December 5, 2006
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Jewelry setting with diamonds
    Patent number: D557172
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: December 11, 2007
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Pentagonal cutting diamond
    Patent number: D481327
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: October 28, 2003
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Pear cut diamond
    Patent number: D485507
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: January 20, 2004
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Arch shape diamond
    Patent number: D485781
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: January 27, 2004
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Pear cut diamond
    Patent number: D490340
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: May 25, 2004
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Ring
    Patent number: D591637
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: May 5, 2009
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Diamond article of jewelry
    Patent number: D409518
    Type: Grant
    Filed: June 24, 1998
    Date of Patent: May 11, 1999
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Nelson Chi Kai Ho
  • Halo insert ring
    Patent number: D680023
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: April 16, 2013
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Jewellery setting
    Patent number: D691510
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: October 15, 2013
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Jewelry setting
    Patent number: D847690
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: May 7, 2019
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Jewelry setting
    Patent number: D847691
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: May 7, 2019
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho
  • Jewelry setting
    Patent number: D852084
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: June 25, 2019
    Assignee: Nelson Jewellery Arts Company Ltd.
    Inventor: Chi Kai Nelson Ho