ALEXANDRIA, Va., May 12 -- United States Patent no. 12,627,246, issued on May 12, was assigned to China University of Petroleum (East China) (Qingdao, China).

"Electrically driven distillation system with variable dynamic load and a distillation method" was invented by Meng Qi (Qingdao, China), Chengtian Cui (Qingdao, China), Xiaodong Zhang (Qingdao, China) and Dongfeng Zhao (Qingdao, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides an inverter control method, device, computer equipment and storage medium, belonging to the field of power electronics. The method comprises: determining a frequency control equation of the inverter under a grid-connected condition when the inve...