Patents by Inventor Zhongda Chen

Zhongda Chen 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: D821363
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: June 26, 2018
    Inventor: Zhongda Chen
  • Earphone
    Patent number: D887394
    Type: Grant
    Filed: August 12, 2018
    Date of Patent: June 16, 2020
    Assignee: Dongguan UiiSii Electronics Co., Ltd
    Inventors: Chunyan Zhang, Xinpeng Feng, Wei Li, Zhongda Chen
  • Earphone
    Patent number: D931255
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: September 21, 2021
    Assignee: Dongguan UiiSii Electronics Co., Ltd
    Inventors: Chunyan Zhang, Yongguo Wu, Wei Li, Zhongda Chen