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USPTO Patent Rankings Data through Sept 30, 2025
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Richard G. Siegal — 1 Patent

Chicago, IL: #7,538 of 13,327 inventorsTop 60%
Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,092,084 of 4,157,543Top 100%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4275381 Operator readable and machine readable character recognition system 1981-06-23