QD

Qiankun Duan

📍 Loudi, CN: #19 of 32 inventorsTop 60%
Overall (All Time): #2,429,277 of 4,157,543Top 60%
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Patent #TitleCo-InventorsDate
D1080690 Road roller Wenjun Chai, Hengning Tang, Ying Huang 2025-06-24