ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,429,239, issued on Sept. 30, was assigned to LG Electronics Inc. (Seoul, South Korea).

"Ventilation apparatus" was invented by Janghee Park (Seoul, South Korea), Yongki Jeong (Seoul, South Korea) and Jinwoo Lee (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ventilation apparatus includes a case including a main case in which an outdoor air inlet and an indoor air outlet are formed on one side and an indoor air inlet and an outdoor air outlet are formed on the other side facing the one side, and a lower case coupled to a lower side of the main case; a ventilation module accommodated in the case and including a total heat exchange e...