Patents by Inventor Huakun Zhang

Huakun 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).

  • Wireless speaker
    Patent number: D902177
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: November 17, 2020
    Assignee: SHENZHEN GRANDSUN ELECTRONIC CO., LTD.
    Inventors: Huakun Zhang, Haiquan Wu, Weili Chen, Ruiwen Shi
  • Pair of wireless earphones
    Patent number: D939478
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: December 28, 2021
    Assignee: Shenzhen Grandsun Electronic Co., LTD.
    Inventors: Haiquan Wu, Huakun Zhang, Xin Yu
  • Charging case for wireless earphones
    Patent number: D949785
    Type: Grant
    Filed: August 26, 2020
    Date of Patent: April 26, 2022
    Assignee: Shenzhen Grandsun Electronic Co., LTD.
    Inventors: Haiquan Wu, Huakun Zhang, Xin Yu