Patents by Inventor Weiqin Zhang

Weiqin 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).

  • Interphone
    Patent number: D969095
    Type: Grant
    Filed: April 9, 2021
    Date of Patent: November 8, 2022
    Inventor: Weiqin Zhang
  • Interphone
    Patent number: D974315
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: January 3, 2023
    Inventor: Weiqin Zhang
  • Pet training device
    Patent number: D987914
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: May 30, 2023
    Inventor: Weiqin Zhang
  • Pet training receiver
    Patent number: D991593
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: July 4, 2023
    Inventor: Weiqin Zhang
  • Pet training device
    Patent number: D1045259
    Type: Grant
    Filed: February 20, 2023
    Date of Patent: October 1, 2024
    Inventor: Weiqin Zhang
  • Signal transmitter
    Patent number: D1047945
    Type: Grant
    Filed: July 20, 2023
    Date of Patent: October 22, 2024
    Inventor: Weiqin Zhang