GENEVA, Dec. 21 -- BEIJING ANNING INNOVATION NETWORK TECHNOLOGY CO., LTD (602, 5th Floor, Building 1, No. 158 West Fourth Ring North RoadHaidian District, Beijing 100084), 北京安宁创新网络科技股份有限公司 (中国北京市海淀区西四环北路158号1幢5层602) filed a patent application (PCT/CN2025/099532) for "ENCRYPTION METHOD, DECRYPTION METHOD AND PROCESSING METHOD FOR MAIL TAMPER-PROOFING, AND DEVICE" on Jun 06, 2025. With publication no. WO/2025/256474, the details related to the patent application was published on Dec 18, 2025.
Notably, the patent applicati...