Patents by Inventor Chi Kai Nelson Ho

Chi Kai Nelson Ho 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).

  • 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
  • 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
  • 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