Patents by Inventor Huang Ji

Huang Ji 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).

  • Digital keypad for a safe
    Patent number: D505530
    Type: Grant
    Filed: February 19, 2004
    Date of Patent: May 24, 2005
    Assignee: Safemark Systems LP
    Inventors: Scott Nelson, George Oelschig, Huang Ji, Zhu Lei
  • Mobile phone case with an embossed surface
    Patent number: D839253
    Type: Grant
    Filed: August 4, 2016
    Date of Patent: January 29, 2019
    Assignee: MULTI-BLOCKS GADGET LIMITED
    Inventor: Huang Ji Su