Patents by Inventor Lok Hang Roger KEUNG

Lok Hang Roger KEUNG 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).

  • PHOTOBIOREACTOR SYSTEM FOR AIR PURIFICATION BY USING MICROALGAE
    Publication number: 20160166985
    Abstract: The present invention relates to air purification. The present invention provides a system for reducing carbon dioxide concentration in air in locations with sub-tropical to temperate climates and method of reducing carbon dioxide concentration using the system.
    Type: Application
    Filed: December 15, 2015
    Publication date: June 16, 2016
    Inventors: YEUK TIN LAU, Lok Hang Roger KEUNG, Sik Chun Johnny LO, Jonathan Christianto