HQ

Haifeng Qi

Overall (2018): #145,937 of 503,207Top 30%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10041223 Method for tackling repelling of hammering during pipe pile driving Wenhua Chen, Jing HOU, Zhenqiang Jiang, Caiyun Huan, Bo Jin 2018-08-07
9963852 Test method for friction resistance at inner and outer sidewalls of pipe pile Wenhua Chen, Jing HOU, Zhenqian Jiang, Yongyong Zhang, Guobin WANG 2018-05-08