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USPTO Patent Rankings Data through Sept 30, 2025
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Richard C. Wingerson

PTPurevision Technology: 1 patents #1 of 1Top 100%
Crested Butte, CO: #1 of 1 inventorsTop 100%
Colorado: #798 of 3,015 inventorsTop 30%
Overall (2003): #133,239 of 273,478Top 50%
1 Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6620292 Cellulose production from lignocellulosic biomass 2003-09-16