Patents by Inventor Ka Yu Calvin Chui

Ka Yu Calvin Chui 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).

  • Patent number: D775027
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: December 27, 2016
    Inventors: Ka Yu Calvin Chui, Wing Chuen Kay Chui
  • Patent number: D798775
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: October 3, 2017
    Inventors: Ka Yu Calvin Chui, Wing Chuen Kay Chui
  • Patent number: D808867
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: January 30, 2018
    Inventors: Ka Yu Calvin Chui, Wing Chuen Kay Chui