ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,708,221, issued on Aug. 18.
"Multifunctional enclosure cushion" was invented by Lijun Jiang (Ningbo, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multifunctional enclosure cushion comprises a floor mat, wherein the floor mat comprises an outer edge, a pillow bag is connected to the outer edge, and the pillow bag has a parabola-shaped cross section and comprises two peripheral end points; and an envelope, wherein the envelope is provided with an outer edge, an inner edge and a central axis, wherein the inner edge is connected with the outer edge of the floor mat, the pillow bag is formed with a concave shape at the position of the central axis,...