GENEVA, July 28 -- SHANGHAI HOTO ENGINEERING INC. (Building No.8, 399 Keyuan RoadPudong New Area, Shanghai 201203), 上海河图工程股份有限公司 (中国上海市浦东新区科苑路399号8幢) filed a patent application (PCT/CN2024/083480) for "POLYPROPYLENE PRODUCTION DEVICE FLEXIBLE TO OPERATE" on Mar 25, 2024. With publication no. WO/2025/152267, the details related to the patent application was published on Jul 24, 2025.

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

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