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USPTO Patent Rankings Data through Sept 30, 2025
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Allen Francis Ringelstetter — 1 Patent

Friesland, WI: #1 of 1 inventorsTop 100%
Wisconsin: #23,834 of 40,088 inventorsTop 60%
Overall (All Time): #2,894,156 of 4,157,543Top 70%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9995254 Device used with the air induction tube of an internal combustion engine after the air filter and before the throttle body 2018-06-12