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Huanzhong Dong

PL Petrochina Company Limited: 1 patents #264 of 890Top 30%
Overall (All Time): #3,343,889 of 4,157,543Top 85%
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Patent #TitleCo-InventorsDate
7635022 Pumping system Xiuting Han, Jiamin Zhang, Shuhua Wang, Fengyou Chen, Aiguo Mo 2009-12-22