SM

Stephen J. Mrachek

📍 Trempealeau, WI: #8 of 15 inventorsTop 55%
🗺 Wisconsin: #23,834 of 40,088 inventorsTop 60%
Overall (All Time): #4,038,789 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4463687 Powered downdraft gasifier Valentine J. Zimmerman 1984-08-07