ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,231, issued on Oct. 6, was assigned to KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY (Thuwal, Saudi Arabia).
"Portable breathing air filtering device and method" was invented by Abdul-Hamid Mohammed Emwas (Thuwal, Saudi Arabia), Osama Shekhah (Thuwal, Saudi Arabia), Mohamed Essam Fayez Awad Hagar (Alexandria, Egypt), Mohamed Eddaoudi (Thuwal, Saudi Arabia) and Nikolaos Papagiannis (Thuwal, Saudi Arabia).
According to the abstract* released by the U.S. Patent & Trademark Office: "An air breathing filtering system includes a housing having an air input and an air output, a first filtering stage that filters out particles from a first air stream to generate a second air stream, ...