Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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Sylvan Cole

Los Angeles, CA: #7,008 of 12,377 inventorsTop 60%
California: #247,236 of 386,348 inventorsTop 65%
Overall (All Time): #4,061,943 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4419706 Mode switching mechanism for a cassette tape recorder 1983-12-06