Patents by Inventor Dao Hoang Vo

Dao Hoang Vo 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).

  • ATTACHABLE DUST FILTER FOR A CONVENTIONAL CIRCULATION FAN
    Publication number: 20220389940
    Abstract: An attachable air filter medium for attachment to a conventional circulation fan is disclosed comprising a netting fabric filter medium being adapted to fit over the rear half of the conventional circulation fan's housing for filtering dust particles in air coming into the circulation fan preventing dust buildup on the fan blade thus eliminate the need to periodically clean the fan.
    Type: Application
    Filed: June 2, 2021
    Publication date: December 8, 2022
    Inventor: Dao Hoang Vo