ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,366, issued on Oct. 14.
"Human body flexion and extension assist device" was invented by Donggwan Park (Busan, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a human body flexion and extension assist device that is in close contact with a back, a pelvis, and a thigh of the human body to exert an assisting force to a flexion and extension motion of an upper body. According to a human body flexion and extension assist device according to the present disclosure, it is possible to store energy by a lower back flexing motion, and conversely, assist the human body by transmitting energy to a lower back extending motion. In addition...