CY

Chengjin Yao

📍 Qingdao, CN: #557 of 2,087 inventorsTop 30%
Overall (All Time): #1,776,097 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12070644 Double-safety anti-dropping and anti-fracture hook for elastic belt — 2024-08-27
11219795 Electronically controlled adjustable dumbbell — 2022-01-11