ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,303, issued on May 27, was assigned to LG Electronics Inc. (Seoul, South Korea).

"Air conditioner" was invented by Ilyoong Shin (Seoul, South Korea), Yongcheol Sa (Seoul, South Korea), Chiwoo Song (Seoul, South Korea) and Kakjoong Kim (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "An air conditioner includes an outdoor unit in which refrigerant circulates; an indoor unit in which water circulates; a heat exchange device including a heat exchanger connecting the outdoor unit to the indoor unit and performing heat exchange between the refrigerant and the water; a first outdoor unit connection pipe connecting the outdoor unit and th...