Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David L. Epperson — 2 Patents in 2020

FLFluke: 2 patents #18 of 81Top 25%
Everett, WA: #23 of 167 inventorsTop 15%
Washington: #2,691 of 14,769 inventorsTop 20%
Overall (2020): #182,073 of 565,922Top 35%
2 Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10605832 Sensor subsystems for non-contact voltage measurement devices Ronald Steuer, Jeffrey Worones, Patrick Scott Hunter, Ricardo Rodriguez 2020-03-31
10591515 Non-contact current measurement system Ricardo Rodriguez, Ronald Steuer, Jeffrey Worones 2020-03-17