ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,383,027, issued on Aug. 12.
"Stress-reducing insole" was invented by Tsang-Chuan Chang (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stress-reducing insole includes a cushion unit, a frame and a superficial layer. The cushion unit includes air bags connected to one another. Each of the air bags includes a valve via which air is pumped into or released from the corresponding one of the air bags. The frame extends around the cushion unit and includes bores for receiving the valves. The superficial layer covers one of two opposite faces of the cushion unit."
The patent was filed on Oct. 27, 2023, under Application No. 18/495,974.
*Fo...