Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Francis G. Yuan

Overall (All Time): #3,837,537 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5261640 Portable engine hoist 1993-11-16