DS

Donald Szopinski

BS Briggs & Stratton: 2 patents #215 of 490Top 45%
📍 Hartland, WI: #128 of 273 inventorsTop 50%
🗺 Wisconsin: #17,084 of 40,088 inventorsTop 45%
Overall (All Time): #2,141,107 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7628387 Engine air/fuel mixing apparatus Max W. Clouse, Aaron Halfmann, David Roth, James J. Dehn, Kyle Clasen +3 more 2009-12-08
5038727 Engine balancing system having freely rotatable single counterbalance weight Roger D. Burns 1991-08-13