Patents by Inventor Yen-Chiao Li

Yen-Chiao 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).

  • Hand-held ultraviolet sterilization device
    Patent number: D990701
    Type: Grant
    Filed: October 25, 2021
    Date of Patent: June 27, 2023
    Assignee: GOLDENSUNDA TECHNOLOGY CO., LTD.
    Inventors: Chi-Yao Liao, Li-Li Mao, Yu-Lung Liao, Yu-Ting Huang, Yen-Chiao Li