Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
JC

John Crowell

SPSpeakman: 1 patents #19 of 33Top 60%
Lemon Grove, CA: #194 of 630 inventorsTop 35%
California: #185,134 of 386,348 inventorsTop 50%
Overall (All Time): #2,166,730 of 4,157,543Top 55%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D517657 Faucet housing Andrew Vellrath, Graham H. Paterson, Michael W. Boyer 2006-03-21
4304398 Device for holding objects for fingerprinting 1981-12-08