GENEVA, March 8 -- ZHENHAI PETROCHEMICAL JIANAN ENGINEERING CO., LTD. (Lianhua Road, Jiaochuan Street, Zhenhai DistrictNingbo, Zhejiang 315207), 镇海石化建安工程股份有限公司 (中国浙江省宁波市镇海区蛟川街道炼化路) filed a patent application (PCT/CN2025/114597) for "RESIDUAL OIL HYDROGENATION SYSTEM" on Aug 14, 2025. With publication no. WO/2026/045939, the details related to the patent application was published on Mar 05, 2026.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by ...