ALEXANDRIA, Va., March 24 -- United States Patent no. 12,582,239, issued on March 24, was assigned to GREE ELECTRIC APPLIANCES INC. OF ZHUHAI (Zhuhai, China).
"Mattress and bed" was invented by Chao Xu (Zhuhai, China), Yingjiang Ma (Zhuhai, China), Shicai Long (Zhuhai, China), Yi Zhang (Zhuhai, China), Ming Xie (Zhuhai, China) and Bowen Qiu (Zhuhai, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A mattress and a bed. The mattress comprises: a support layer assembly (10), wherein the support layer assembly (10) is embedded with a pipe channel (11); an airbag assembly (20), wherein the airbag assembly (20) is located on the support layer assembly (10); and a pipe assembly (30), wherein the pipe assembly ...