GENEVA, May 4 -- NANJING HANSHU ENVIRONMENTAL PROTECTION EQUIPMENT CO., LTD (No. 96 Shidai Avenue, Liuhe District.Nanjing, Jiangsu 211500), 南京菡束环保设备有限公司 (中国江苏省南京市六合区时代大道96号), LIU, Guo (Guancheng Datong Phase II 20-2-1606, No. 69 Longwan Road, Liuhe District.Nanjing, Jiangsu 211500), 刘果 (中国江苏省南京市六合区龙弯路69号冠城大通二期20-2-1606.) filed a patent application (PCT/CN2023/131901) for "CONTROL VALVE" on ...