ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,414,635, issued on Sept. 16, was assigned to Chunguo Pan (Yuxi, China).
"High-elastic anti-deformation mattress" was invented by Aiyun Cao (Shangrao, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to the technical field of mattresses, and particularly provides a high-elastic anti-deformation mattress. The high-elastic anti-deformation mattress includes a mattress assembly which includes a first layer, a second layer and a third layer from top to bottom in a sequence; a plurality of assembling chambers are formed in the second layer, and each assembling chamber is filled with a vertically upward spring; a large-diamet...