HS

Howard W. Steffen

US United States Steel: 1 patents #107 of 309Top 35%
📍 Via Enrico Fermi, PA: #216 of 375 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,065,597 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4316603 Stockline armor construction for blast furnaces — 1982-02-23