ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,186, issued on Oct. 21, was assigned to LG Electronics Inc. (Seoul, South Korea).
"Refrigerator" was invented by Yongwon Dong (Seoul, South Korea), Younseok Lee (Seoul, South Korea) and Sanggyun Lee (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigerator according to an embodiment comprises: a cabinet having a storage space; a main door that can rotate relative to the cabinet and opens and closes the storage space; a sub door that rotates relative to the main door; and a hinge mechanism which is connected to the main door and the sub door and provides the axis of rotation of the main door and the axis of rotation of the sub...