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Changjiang Ding

YC Yiwu Siwei Technology Co.: 4 patents #1 of 1Top 100%
📍 Yiwu, CN: #4 of 24 inventorsTop 20%
Overall (2023): #50,971 of 537,848Top 10%
4
Patents 2023

Issued Patents 2023

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
D1003653 USB electric coffee grinder 2023-11-07
D1003654 USB electric coffee grinder 2023-11-07
D1003103 USB electric coffee grinder 2023-10-31
D985290 Combined electric pepper mill and USB 2023-05-09