ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,456, issued on March 24, was assigned to CSG POWER GENERATION Co. LTD. MAINT. & TEST CO. (Guangzhou, China).

"Method and apparatus for identifying S-characteristic of pump turbine, and control method" was invented by Mingxuan Yang (Guangzhou, China), Yaxiong Yu (Guangzhou, China), Yu Gong (Guangzhou, China), Xiaobo Qiu (Guangzhou, China), Tao Chen (Guangzhou, China), Qing Li (Guangzhou, China), Hao Wu (Guangzhou, China) and Kaiwei Xu (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure discloses a method and an apparatus for identifying an S-characteristic of a pump turbine and a control method. The method for ide...