Patents by Inventor Rujian Wu

Rujian Wu 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).

  • Tumbler hygrometer
    Patent number: D1000295
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: October 3, 2023
    Inventors: Zhimeng Huang, Rujian Wu, Zhong Nong, Jianhua Li
  • Smart doorbell
    Patent number: D1034269
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: July 9, 2024
    Inventors: Junye Guo, Jianhua Li, Rujian Wu, Zhong Nong