GENEVA, May 16 -- WANHUA CHEMICAL GROUP CO., LTD. (No.59, Chongqing Street, Yantai Economic and Technological Development ZoneYantai, Shandong 264006), 万华化学集团股份有限公司 (中国山东省烟台市经济技术开发区重庆大街59号) filed a patent application (PCT/CN2023/130697) for "FIXED VALVE ELEMENT, TRAY, AND REACTOR" on Nov 09, 2023. With publication no. WO/2025/097363, the details related to the patent application was published on May 15, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which ...