ALEXANDRIA, Va., June 12 -- United States Patent no. 12,297,817, issued on May 13, was assigned to Ching-Ho Lo (Taichung, Taiwan).

"Power output economizing device" was invented by Ching-Ho Lo (Taichung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device for economizing power output includes a circular rotary unit and a holder. When the rotational output end of a power source is connected to a power connection portion of the circular rotary unit and the rotational power is output from a power connection portion to a load, the circular rotary unit is suspended by the holder, so that when the power source drives the circular body to rotate, the circular body can rotate relative to the holder withou...