Patents by Inventor Xiaobao Lei

Xiaobao Lei 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).

  • Voice input/output device
    Patent number: D971872
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: December 6, 2022
    Assignee: Shenzhen Grandsun Electronic Co., Ltd.
    Inventors: Haiquan Wu, Xiaobao Lei, Weili Chen