MS

Mark Donald Schaefer

BS Briggs & Stratton: 1 patents #8 of 24Top 35%
📍 Waukesha, WI: #26 of 119 inventorsTop 25%
🗺 Wisconsin: #804 of 3,158 inventorsTop 30%
Overall (2004): #158,902 of 270,089Top 60%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6810849 Four-stroke internal combustion engine Nicholas Hirsch, Michael Braun, Peter Hotz, Darrell Wiatrowski, Ronald Lee Bartelt +1 more 2004-11-02