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Junlong DU

YC Yantai Jereh Petroleum Equipment & Technologies Co.: 2 patents #68 of 140Top 50%
📍 Shandong, CN: #587 of 2,138 inventorsTop 30%
Overall (All Time): #1,710,799 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12345172 Fracturing device, engine and exhaust apparatus thereof Xiaolei Ji, Rikui Zhang, Peng Zhang 2025-07-01
12292067 Turbine engine air intake system and cabin Rikui Zhang, Xiaolei Ji, Peng Zhang 2025-05-06