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USPTO Patent Rankings Data through Dec 31, 2025
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David E. Sisk — 3 Patents in 2018

BTBulk Tank: 3 patents #1 of 1Top 100%
Bonne Terre, MO: #1 of 3 inventorsTop 35%
Missouri: #127 of 2,351 inventorsTop 6%
Overall (2018): #78,460 of 503,207Top 20%
3 Patents 2018

Issued Patents 2018

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10150071 Filter guide ring 2018-12-11
10145500 Structured tee with wear pocket 2018-12-04
10040626 Hopper tee having drop opening with arcuate closure 2018-08-07