FL

Fei Lin

BC Beijing Gridsum Technology Co.: 1 patents #8 of 25Top 35%
Overall (All Time): #1,724,517 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D1082293 Backpack Ya-Chi Chen 2025-07-08
10104428 Video playing detection method and apparatus Ning Du, Jie CHEN 2018-10-16