ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,754, issued on March 31, was assigned to HISENSE REFRIGERATOR Co. LTD. (Qingdao, China).

"Refrigerator" was invented by Chun Yang (Qingdao, China), Dong Guo (Qingdao, China), Xiangping Zhang (Qingdao, China), Jing Fu (Qingdao, China), Yufeng Bao (Qingdao, China) and Haiyan Wang (Qingdao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A refrigerator includes a box body, a hinge assembly, and a door body. The hinge assembly includes a plate body, a locking hook, and a blocking portion. A free end of the locking hook extends in a direction away from the plate body and is bent in a direction proximate to the plate body, so as to form an opening t...