DR

David Roethel

SC S&S Cycle: 3 patents #12 of 47Top 30%
Overall (All Time): #1,582,510 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

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