Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
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David Roethel — 3 Patents

SCS&S Cycle: 3 patents #12 of 47Top 30%
Hudson, WI: #181 of 466 inventorsTop 40%
Wisconsin: #13,258 of 40,088 inventorsTop 35%
Overall (All Time): #1,582,510 of 4,157,543Top 40%
3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7395790 Reed valve breather for evolution engine Timothy T. Tiller, James K. Simonelli, Floyd Baker, Jeffrey Bailey, Bill Swiggum 2008-07-08
7299895 Engine crankcase Timothy T. Tiller 2007-11-27
6899066 Valve assembly Timothy T. Tiller, Floyd Baker 2005-05-31