GENEVA, June 29 -- 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 (中国山东省烟台市烟台市经济技术开发区重庆大街59号) filed a patent application (PCT/CN2023/140146) for "ACTIVATED CARBON CATALYST FOR PHOSGENE SYNTHESIS AND METHOD USING SAME" on Dec 20, 2023. With publication no. WO/2025/129487, the details related to the patent application was published on Jun 26, 2025.

Notably, the patent application was submitted under the...