XH

Xiuling Hua

PL Petrochina Company Limited: 2 patents #138 of 890Top 20%
Overall (All Time): #2,006,930 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9347016 Industrial gear lubricating oil composition used for resisting micro-pitting Xisheng Fu, Jie Zhang 2016-05-24
6774092 Additive composition for gearbox oil Xisheng Fu 2004-08-10