XH

Xiuling Hua

PL Petrochina Company Limited: 1 patents #1 of 2Top 50%
Overall (2004): #86,216 of 270,089Top 35%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6774092 Additive composition for gearbox oil Xisheng Fu 2004-08-10