QM

Qingfeng Ma

PL Petrochina Company Limited: 1 patents #34 of 192Top 20%
Overall (2020): #131,200 of 565,922Top 25%
2
Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10683459 Liquid-phase hydroisomerization system and process therefor and use thereof Shoutao Ma, Xiaoqiao Huang, Famin Sun, Fangming Xie, Yongsheng Duan +14 more 2020-06-16
D874795 Heel protector for footwear 2020-02-11