YF

Yisheng Feng

📍 Shandong, CN: #404 of 2,138 inventorsTop 20%
Overall (All Time): #1,350,817 of 4,157,543Top 35%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11872645 Multi-functional saw 2024-01-16
D1000931 Hacksaw 2023-10-10
7172742 Method of preparing wet process phosphoric acid Jiutian Feng, Xigang LIU, Yurui Wang, Tianbao Lu 2007-02-06