ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,507,821, issued on Dec. 30, was assigned to FLEXISPOT INC. (Irvine, Calif.).
"Carpet" was invented by Lehong Xiang (Ningbo, China), Haoyu Ye (Ningbo, China) and Shuang Zhao (Ningbo, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A carpet is provided. The carpet includes a pad layer and a carpet layer laid on the pad layer, where the carpet is machine washable, and further includes a connection module; the connection module is located below the carpet layer and connected to the carpet layer; and when the carpet layer or the pad layer is displaced or tends to be displaced due to external force, the connection module and the pad layer are in close pr...