YH

Yanfu Huang

CP China National Petroleum: 1 patents #1 of 23Top 5%
CL Cnpc Engineering Technology R&D Company Limited: 1 patents #8 of 47Top 20%
Overall (2020): #218,674 of 565,922Top 40%
1
Patents 2020

Issued Patents 2020

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10808496 Cementing plug Hongying Zhang, Na Wang, Lin Shi, Ping-Cheng Yu 2020-10-20