ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,228,326, issued on Feb. 18, was assigned to LG Electronics Inc. (Seoul, South Korea).

"Refrigerator" was invented by Youngseung Song (Seoul, South Korea), Kyongbae Park (Seoul, South Korea), Yunsu Cho (Seoul, South Korea), Kyunghun Cha (Seoul, South Korea) and Sangbok Choi (Seoul, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigerator includes an evaporator, a defrost heater, a temperature sensor to detect a temperature associated with the evaporator, and controller to control the defrost heater. In response to a defrosting operation start time point arriving, the controller is configured to perform a defrost operation mode including ...