Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Brant Callahan — 1 Patent

IDImpulse Devices: 1 patents #7 of 10Top 70%
Nevada City, CA: #96 of 174 inventorsTop 60%
California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #3,385,677 of 4,157,543Top 85%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7218034 Acoustic driver assembly with restricted contact area Ross Tessien, Daniel A. Phillips 2007-05-15