ALEXANDRIA, Va., Aug. 6 -- United States Patent no. 12,376,641, issued on Aug. 5.
"Sports shoe for flat foot prevention and correction" was invented by Jayjay CJZ Zhou (West Vancouver, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sports shoe for flat foot prevention and correction, including a sole, an upper and an insole, an area of the insole corresponding to the arch of human foot is D-shaped area for auxiliary correction training, the arc part of the D-shaped area are divided into three sections, namely a middle section connected to other parts of the insole as a whole and two opening sections which are between two ends of the middle section and two ends of the vertical line part of D shape, a...