Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Leonard L. Rosin

Oberlin, KS: #1 of 4 inventorsTop 25%
Kansas: #6,307 of 12,005 inventorsTop 55%
Overall (All Time): #3,868,960 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4989311 Bearing puller 1991-02-05