FM

Frank D. Marhanka

📍 Florissant, MO: #153 of 452 inventorsTop 35%
🗺 Missouri: #8,863 of 23,789 inventorsTop 40%
Overall (All Time): #2,284,946 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5393311 Method and apparatus for desulfurizing coal — 1995-02-28
4390605 Source of electricity — 1983-06-28