GENEVA, Dec. 15 -- HEFEI NATIONAL LABORATORY (No.5099 WangJiang West Road Shushan DistrictHefei, Anhui 230088), 合肥国家实验室 (中国安徽省合肥市蜀山区望江西路5099号), UNIVERSITY OF SCIENCE AND TECHNOLOGY OF CHINA (96, Jinzhai Road, Baohe DistrictHefei, Anhui 230026), 中国科学技术大学 (中国安徽省合肥市包河区金寨路96号) filed a patent application (PCT/CN2024/117892) for "WORKING MEDIUM PURIFICATION DEVICE AND REFRIGERATION SYSTEM" on Sep 10, 2024. With publication no. WO/...