ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,367, issued on Sept. 30, was assigned to Ogogo Inc. (Spokane, Wash.).

"Folding fitness mat" was invented by KaiGang Zhan (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A folding fitness mat is provided, which includes a top surface and a bottom surface opposite to each other. The top surface is provided with one or more top surface broken line grooves across a width of the top surface. The bottom surface is provided with one or more bottom surface broken line grooves extending in a width direction of the folding fitness mat. Bump structures are respectively arranged at two opposite ends of each of the bottom surface broken line gro...