ALEXANDRIA, Va., April 7 -- United States Patent no. 12,595,778, issued on April 7, was assigned to Yunnan UNITED POWER Development Co. Ltd. (Kunming, China) and Huaneng Lancang River Hydropower Inc (Kunming, China).

"Method and system for optimizing operating swing of vertical shaft suspended hydrogenerator unit" was invented by Hong'e Guo (Kunming, China), Youde Luo (Kunming, China), Wenbin Wang (Kunming, China), Zhengtang Ji (Kunming, China), Qiang Yang (Kunming, China), Junchao Li (Kunming, China), Yunjiang Lu (Kunming, China), Dinghong Gu (Kunming, China) and Xinxing Wang (Kunming, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a system for optimizing operating swing of a vertical sha...