ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,299, issued on March 18, was assigned to HEFEI HAIER REFRIGERATOR Co. LTD (Anhui, China), QINGDAO HAIER REFRIGERATOR Co. LTD. (Shandong, China) and HAIER SMART HOME Co. LTD. (Shandong, China).

"Refrigerator" was invented by Zhanpeng Cui (Shandong, China), Jiaming Li (Shandong, China), Lisheng Ji (Shandong, China) and Peng Lv (Shandong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigerator, comprising a refrigerator body defining a first chamber and a door body. The door body comprises a main door for opening/closing the first chamber, and defining a second chamber, and a secondary door for opening/closing the second chamber. An air su...