ALEXANDRIA, Va., July 30 -- United States Patent no. 12,371,128, issued on July 29.
"Hub gearing system of a bicycle" was invented by Po-Ju Lin (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bicycle-used hub gearing system includes a hub gearing and a rotational element. The hub gearing includes a hub and a shift rod formed with a first end located in the hub and a second end located out of the hub. The rotational element includes a slope in contact with the second end of the shift rod. The slope includes various gear points for contact with of the second end of the shift rod, thereby keeping the first end of the shift rod in various depths in the hub corresponding to various gears of the...