ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,155, issued on Oct. 6.
"Grip strength enhancement device" was invented by Xiaolu Wu (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A grip strength enhancement device includes first and second arms pivotally coupled about an axis, with handles at their lower ends. A spring extends between upper portions of the arms. The spring is connected to the first arm via an upper loop and operatively coupled to a threaded adjustment mechanism on the second arm via a lower hook. The adjustment mechanism, driven by a knob and screw, includes a nut constrained within a limiting slot defined in the second arm. End stop surfaces cooperate with the nu...