GENEVA, Nov. 2 -- NANTONG OUBEN CONSTRUCTION TECHNOLOGY CO., LTD (No. 55 Tongshun Road, Development ZoneNantong, Jiangsu 226017), 南通欧本建筑科技有限公司 (中国江苏省南通市开发区通顺路55号) filed a patent application (PCT/CN2024/100640) for "FIREPROOF COATING-FREE SHELL COLUMN HAVING BUILT-IN REINFORCEMENT CAGE" on Jun 21, 2024. With publication no. WO/2025/222611, the details related to the patent application was published on Oct 30, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intell...