Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CG

Changna Guo

Overall (All Time): #2,421,315 of 4,157,543Top 60%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12321167 Moving target positioning capability testing device and testing method for coal mine Long Ma, Kun Fang, Xu Qian, Zhenxin Li, Mingying Xu +4 more 2025-06-03