ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,043, issued on Oct. 14, was assigned to CATHAY CONSOLIDATED INC. (Yilan County, Taiwan).
"Portable inflatable mat structure" was invented by Tsung Hsi Liu (Yilan County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A portable inflatable mat includes an upper covering layer and a lower covering layer. A plurality of light and thin connecting strips are connected between the upper covering layer and the lower covering layer. Particularly, a wavy blocking layer is provided between the upper covering layer and the lower covering layer, thereby reducing air convection and blocking lower-temperature radiation. A support layer is provided below th...