QM

Qingcheng Mai

Overall (All Time): #1,759,818 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11970890 Door stopper 2024-04-30
D1005096 Door stop 2023-11-21