Patents by Inventor ZhaoTang Zhang

ZhaoTang 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).

  • Earplug
    Patent number: D976386
    Type: Grant
    Filed: May 14, 2021
    Date of Patent: January 24, 2023
    Assignee: Haipa Techlife (Shenzhen) Co., Ltd.
    Inventor: ZhaoTang Zhang