Patents by Inventor Yanzhu Yu

Yanzhu Yu 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).

  • Earphone
    Patent number: D863263
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: October 15, 2019
    Inventor: Yanzhu Yu
  • Earphone case
    Patent number: D899089
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: October 20, 2020
    Inventor: Yanzhu Yu