Patents by Inventor Songzhen Li

Songzhen Li 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).

  • Charging device
    Patent number: D879035
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: March 24, 2020
    Inventors: Songzhen Li, Fei Zhang
  • Charging base
    Patent number: D881123
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: April 14, 2020
    Inventors: Fei Zhang, Songzhen Li
  • Wireless charging bracket
    Patent number: D889403
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: July 7, 2020
    Inventors: Songzhen Li, Fei Zhang
  • Combined sterilizer and wireless charging box
    Patent number: D892045
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: August 4, 2020
    Inventors: Fei Zhang, Songzhen Li