GENEVA, Dec. 28 -- HUANENG POWER INTERNATIONAL INC SHANGHAI SHIDONGKOU FIRST POWER PLANT (No. 270 Shengshi RoadBaoshan District, Shanghai 200942), 华能国际电力股份有限公司上海石洞口第一电厂 (中国上海市宝山区盛石路270号) filed a patent application (PCT/CN2025/098587) for "STOP MECHANISM FOR CERAMIC BALL VALVE AND METHOD" on May 30, 2025. With publication no. WO/2025/261148, the details related to the patent application was published on Dec 26, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) ...