Patents by Inventor YAU SANG STEPHEN CHENG

YAU SANG STEPHEN CHENG 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).

  • INDOOR AIRFLOW CONTROL SYSTEM
    Publication number: 20230051451
    Abstract: A system for airflow control includes at least two apparatus. The apparatus configures to create the required airflow to direct, remove and deactivate pathogenic aerosols in the air by working together. The apparatus can equip with low power fan.
    Type: Application
    Filed: October 17, 2022
    Publication date: February 16, 2023
    Inventors: YAU SANG STEPHEN CHENG, Wing Shing Andy Choi