JN

Jianqiang Ning

Overall (All Time): #1,732,923 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12396603 Device structure for automatically opening and closing wastewater tank valve of cleaning machine — 2025-08-26
D1047321 Hand-held vacuum cleaner — 2024-10-15