HL

Hangfeng Li

Overall (All Time): #1,690,093 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D1058095 Hydraulic floor jack Yufeng He, Weixiang He, Xiaojun Ye 2025-01-14
11780717 Jack with a protecting structure of a pump piston and method for using the same Guoliang HE, Weixiang He, Gang Sun, Guannan Lu 2023-10-10