GENEVA, March 22 -- HUANENG (FUJIAN) ENERGY DEVELOPMENT CO., LTD. FUZHOU BRANCH (No. 239 Dong'an Village, Hangcheng Street, Changle DistrictFuzhou, Fujian 350200), 华能(福建)能源开发有限公司福州分公司 (中国福建省福州市长乐区航城街道东安村东安239号) filed a patent application (PCT/CN2025/077802) for "SELF-LOCKING FASTENING DEVICE FOR IMPELLER OF DESULFURIZATION SLURRY CIRCULATING PUMP" on Feb 18, 2025. With publication no. WO/2026/056215, the details related to the patent application was published on Mar...