QZ

Qihui Zhao

Overall (2016): #260,340 of 481,213Top 55%
1
Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9447641 Rotary steerable drilling tool with a linear motor Naizhen Liu, Yuzhou Lu, Yonghe Li, Rui Bai, Jing Li +1 more 2016-09-20