ZZ

Zhonghui Zhang

CC China Petroleum & Chemical: 1 patents #836 of 1,719Top 50%
📍 Dongying, CN: #54 of 139 inventorsTop 40%
Overall (All Time): #3,109,316 of 4,157,543Top 75%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8746093 Oil pumping unit Minxuan Wang, Jianli XU, Zhengquan CHENG, Bin Wei, Bingsheng Liu +3 more 2014-06-10