Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JC

John Herman Callahan

Pleasant Hill, AR: #1 of 1 inventorsTop 100%
Arkansas: #168 of 658 inventorsTop 30%
Overall (2021): #401,206 of 548,734Top 75%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11089733 Net wrap recovery device 2021-08-17