ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,509, issued on April 15, was assigned to TAIWAN TRUEWIN TECHNOLOGY Co. LTD. (Hsinchu, Taiwan).

"Charging method for series battery cells" was invented by Fang-Chi Hsieh (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "This invention discloses a charging method for series rechargeable battery cells. This invention comprises a Total Voltage Follow-up Procedure (TVFP) in combination with an Artificial Intelligent Equalizing Procedure (AIEP). The TVFP detects deviation of a total voltage and accordingly modifies a trigger voltage for voltage equaling procedure; the AIEP controls the voltage difference of the series battery cells within a p...