Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Chao-Tai Cheng

Overall (All Time): #3,724,745 of 4,157,543Top 90%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5667348 Screw for fibrous boards Sen-Yang Chen 1997-09-16