Patents by Inventor Tang Zhonghui

Tang Zhonghui 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).

  • Headphone
    Patent number: D871367
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: December 31, 2019
    Assignee: SHENZHEN GRANDSUN ELECTRONIC CO., LTD.
    Inventors: Zhang Zhijun, Wu Haiquan, Tang Zhonghui, Peng Jiugao, Shi Ruiwen
  • Pair of earphones
    Patent number: D873248
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: January 21, 2020
    Assignee: SHENZHEN GRANDSUN ELECTRONIC CO., LTD.
    Inventors: Zhong Weicheng, Wu Haiquan, Tang Zhonghui, Peng Jiugao, Shi Ruiwen