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USPTO Patent Rankings Data through Sept 30, 2025
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Orval C. McCallum — 1 Patent

Portland, OR: #6,022 of 9,213 inventorsTop 70%
Oregon: #17,068 of 28,073 inventorsTop 65%
Overall (All Time): #3,974,855 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4667411 Hand-held powered gasket punch 1987-05-26