Patents by Inventor Kok Wong

Kok Wong 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).

  • Polyalkyleneimine-graft-biodegradable polymers for delivery of bioactive agents
    Publication number: 20050265956
    Abstract: The invention provides poly(alkyleneimine)-graft-biodegradable polymers and methods for preparing such polymers. The poly(alkyleneimine)-graft-chitosan polymers may optionally contain a targeting element. The poly(alkyleneimine)-graft polymers may be used to deliver a bioactive agent into a cell.
    Type: Application
    Filed: January 12, 2005
    Publication date: December 1, 2005
    Inventors: Ye Liu, Kok Wong, Guobin Sun, Chaobin He, Kam Leong
  • Diamond jewellery
    Patent number: D618132
    Type: Grant
    Filed: February 11, 2009
    Date of Patent: June 22, 2010
    Assignee: Wing Yee Gems & Jewellery Limited
    Inventors: Tse-Kok Wong, Lok-Sung Wong
  • Cushion jewelry setting
    Patent number: D672269
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 11, 2012
    Assignee: Wing Yee Gems & Jewellery Limited
    Inventors: Tse-Kok Wong, Lok-Sung Wong
  • Pear jewelry setting
    Patent number: D672270
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 11, 2012
    Assignee: Wing Yee Gems & Jewellery Limited
    Inventors: Tse-Kok Wong, Lok-Sung Wong
  • Heart jewelry setting
    Patent number: D672682
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: December 18, 2012
    Assignee: Wing Yee Gems & Jewellery Limited
    Inventors: Tse-Kok Wong, Lok-Sung Wong
  • Oval jewelry setting
    Patent number: D680026
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: April 16, 2013
    Assignee: Wing Yee Gems & Jewellery Limited
    Inventors: Tse-Kok Wong, Lok-Sung Wong
  • Jewelry
    Patent number: D680896
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: April 30, 2013
    Assignee: Wing Yee Gems & Jewellery Limited
    Inventors: Tse-Kok Wong, Lok-Sung Wong
  • Diamond jewelry
    Patent number: D685672
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: July 9, 2013
    Assignee: Wing Yee Gems & Jewellery Limited
    Inventors: Tse-Kok Wong, Lok-Sung Wong