ALEXANDRIA, Va., July 30 -- United States Patent no. 12,369,720, issued on July 29, was assigned to Keeson Technology Corporation Limited (Jiaxing, China).
"Bed frame" was invented by Huafeng Shan (Zhejiang, China), Jian Wang (Zhejiang, China), Xiang Nie (Zhejiang, China) and Shaojun Li (Zhejiang, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bed frame includes: an external frame, an internal supporting portion and a bed cover. The external frame is a hollow frame. The internal supporting portion is of a large-interval structure. The internal supporting portion is arranged inside the external frame to reinforce the strength of the external frame. The bed cover covers the top faces of the external fr...