Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Charles V. Canham

Portland, OR: #6,022 of 9,213 inventorsTop 70%
Oregon: #17,068 of 28,073 inventorsTop 65%
Overall (All Time): #3,070,617 of 4,157,543Top 75%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9134087 Gun bore cleaning device 2015-09-15