GENEVA, Nov. 23 -- CHEN, Xiaoxiao (Zhonghe Chaoyang Road #320, Gaoxin DistrictChengdu, Sichuan 610000), 陈潇潇 (中国四川省成都市高新区中和朝阳路320号) filed a patent application (PCT/CN2024/099466) for "BLOCKCHAIN-BASED ELECTRONIC TRANSACTION SYSTEM USING PHYSICAL PRECIOUS METAL RESERVES TO ISSUE ALL CERTIFICATES" on Jun 16, 2024. With publication no. WO/2025/236349, the details related to the patent application was published on Nov 20, 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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