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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Zengjun DANG — 1 Patent in 2021

Baofeng County, CN: #16 of 88 inventorsTop 20%
Overall (2021): #190,565 of 548,734Top 35%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11193446 Needle-shaped cylinder liner and preparation method therefor, and coating liquid for preparing needle-shaped cylinder liner Delong Xue, Zhijun Liu, Yong Wang, Qifei Hou 2021-12-07