GENEVA, Oct. 18 -- NANJING UNIVERSITY OF POSTS AND TELECOMMUNICATIONS (No.9 Wenyuan Road, Qixia DistrictNanjing, Jiangsu 210000), 南京邮电大学 (中国江苏省南京市栖霞区文苑路9号) filed a patent application (PCT/CN2024/135899) for "BLOCKCHAIN DATA-BASED SEAL DATA ENCRYPTION SECURITY SYSTEM USING USER ROLE MODEL" on Nov 29, 2024. With publication no. WO/2025/213792, the details related to the patent application was published on Oct 16, 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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