ALEXANDRIA, Va., July 28 -- United States Patent no. 12,690,691, issued on July 28.

"Elastic module, elastic mattress and furniture" was invented by Luhao Leng (Xiamen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An elastic module assembly is used to form an elastic pad. The elastic module assembly includes a middle support layer having upper elastic modules connected among adjacent upper strip-shaped mounting frames on an upper surface of the middle support layer. Lower elastic modules are connected among adjacent lower strip-shaped mounting frames on a lower surface of the middle support layer. The elastic module assembly is simple in construction and provides enhanced comfort."

The patent was fi...