WL

Weihan Ling

CL China Oilfield Services Limited: 1 patents #31 of 78Top 40%
Overall (All Time): #3,122,923 of 4,157,543Top 80%
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8820145 Measuring device for measuring consistency of cement slurry for a consistometer Yuwei Luo, Yutian Wang, Zhenyu Yang, Shiwen Yu, Weijun Lv +3 more 2014-09-02