ALEXANDRIA, Va., July 15 -- United States Patent no. 12,661,534, issued on June 23, was assigned to LG Electronics Inc. (Seoul, South Korea).

"Mask apparatus and method for controlling the same" was invented by Sooyong Park (Seoul, South Korea), Jinmoo Park (Seoul, South Korea), Seonghun Lee (Seoul, South Korea), Juchan Kwon (Seoul, South Korea) and Minsoo Kim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a mask apparatus. The mask apparatus includes a mask body in which a fan module is provided, a face guard coupled to a rear surface of the rear body so as to be in close contact with user's face and having a breathing space therein, a pressure sensor installed in the mask bo...