Patents by Inventor Yueling Zhang

Yueling Zhang 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).

  • Gas fire pit
    Patent number: D729915
    Type: Grant
    Filed: August 23, 2014
    Date of Patent: May 19, 2015
    Inventor: Yueling Zhang
  • Metal detector control box
    Patent number: D844463
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: April 2, 2019
    Inventor: Yueling Zhang
  • Metal detector
    Patent number: D846411
    Type: Grant
    Filed: January 28, 2018
    Date of Patent: April 23, 2019
    Inventor: Yueling Zhang
  • Metal detector
    Patent number: D881033
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 14, 2020
    Inventor: Yueling Zhang
  • Metal detector
    Patent number: D881034
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: April 14, 2020
    Inventor: Yueling Zhang
  • Metal detector
    Patent number: D881035
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: April 14, 2020
    Inventor: Yueling Zhang
  • Metal detector
    Patent number: D881036
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: April 14, 2020
    Inventor: Yueling Zhang
  • Metal detector
    Patent number: D881037
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: April 14, 2020
    Inventor: Yueling Zhang
  • Metal detector
    Patent number: D942279
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: February 1, 2022
    Assignee: SHANGHAI 21ST CENTURY ELECTRONIC EQUIPMENT CO., LTD.
    Inventor: Yueling Zhang