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USPTO Patent Rankings Data through Sept 30, 2025
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Norman J. April

Ottawa, CA: #3,687 of 6,399 inventorsTop 60%
Overall (All Time): #3,717,966 of 4,157,543Top 90%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5638877 Stake sharpening apparatus 1997-06-17