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USPTO Patent Rankings Data through Sept 30, 2025
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Vernon C. Plotts

JMJohns Manville: 1 patents #103 of 182Top 60%
Littleton, CO: #1,041 of 1,939 inventorsTop 55%
Colorado: #24,093 of 40,980 inventorsTop 60%
Overall (All Time): #3,698,656 of 4,157,543Top 90%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5817387 Encapsulated insulation assembly Robert J. Allwein, Dennis Robert Larratt 1998-10-06