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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JD

Joseph D. Duff — 1 Patent in 2021

FWFlint & Walling: 1 patents #1 of 5Top 20%
Louisville, KY: #116 of 367 inventorsTop 35%
Kentucky: #351 of 1,120 inventorsTop 35%
Overall (2021): #399,858 of 548,734Top 75%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11035367 Sump pump system with an electronic controller module secured in a sump pump power cord Eric J. Hansen, Josh Tang, Daniel TANG, Jeff Sloss 2021-06-15