YZ

Youfa ZHANG

📍 Nanhu Subdistrict, CN: #2 of 3 inventorsTop 70%
Overall (All Time): #2,375,390 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D869750 Smoking device 2019-12-10
D869751 Smoking device 2019-12-10