GENEVA, Dec. 8 -- CHINA TIANCHEN ENGINEERING CO., LTD. (No.1 Jingjin Road, Beichen District, TianjinBeichen District, Tianjin 300400), 中国天辰工程有限公司 (中国天津市北辰区天津市北辰区京津路1号) filed a patent application (PCT/CN2025/098895) for "LACTAM PURIFICATION PROCESS METHOD AND PURIFICATION PROCESS DEVICE" on Jun 03, 2025. With publication no. WO/2025/247411, the details related to the patent application was published on Dec 04, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the Worl...