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Shijun Song

YC Yantai Jereh Petroleum Equipment & Technologies Co.: 1 patents #12 of 39Top 35%
Overall (2022): #258,927 of 548,613Top 50%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11480040 Electro-hydraulic hybrid drive sand-mixing equipment Maomao Han, Weiwei Liu, Yongcheng Liu, Yipeng WU, Shuwei Li +1 more 2022-10-25