YG

Yanfeng Geng

CP China University Of Petroleum: 1 patents #1 of 11Top 10%
📍 Qingdao, MA: #4 of 5 inventorsTop 80%
Overall (2017): #192,587 of 506,227Top 40%
1
Patents 2017

Issued Patents 2017

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9587440 Dynamic point-the-bit rotary steerable drilling tool and measuring method thereof Weiliang Wang, Zhidan Yan 2017-03-07