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Home / Beijing Subway Operation Co. Ltd. Technology Innovation Research Institute Branch
Last updated: April 19, 2026

Beijing Subway Operation Co. Ltd. Technology Innovation Research Institute Branch

1 pending office actions

Portfolio Summary

1
Total Pending OAs
0
Final Rejections
1
Non-Final OAs

Pending Office Actions

App #TitleExaminerArt UnitStatusFiled
18463361 Subway Vehicle Electronic Record System Based on Blockchain Technology SMITH, JASON CHRISTOPHER 3613 Non-Final OA Sep 08, 2023

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