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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David L. Epperson — 3 Patents in 2018

FLFluke: 3 patents #3 of 92Top 4%
Everett, WA: #5 of 155 inventorsTop 4%
Washington: #1,277 of 12,409 inventorsTop 15%
Overall (2018): #79,140 of 503,207Top 20%
3 Patents 2018

Issued Patents 2018

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10095659 Handheld devices, systems, and methods for measuring parameters Luis Alberto Katz, Henricus Koppelmans, Paul H. Heydron 2018-10-09
9933459 Magnetically coupled ground reference probe Jeffrey Worones, Ricardo Rodriguez 2018-04-03
9874547 Wireless combustion/efficiency analyzer 2018-01-23