Patents by Inventor Fengxi Yu

Fengxi Yu 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).

  • Saliva collector
    Patent number: D1004125
    Type: Grant
    Filed: November 16, 2021
    Date of Patent: November 7, 2023
    Assignees: GUANGDONG LONGSEE BIOMEDICAL CO., LTD., FOSHAN LONGSEE BIOMEDICAL CO., LTD.
    Inventors: Tao Chen, Zhao Zhang, Shizhou Deng, Fengxi Yu