DH

Donald B. Hoffman

NS National Steel: 1 patents #17 of 84Top 25%
📍 Florissant, MO: #227 of 452 inventorsTop 55%
🗺 Missouri: #13,067 of 23,789 inventorsTop 55%
Overall (All Time): #3,943,303 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4886247 Ceramic brick retainer band for steel ladle Joseph J. Linhart, Raymond C. Stoces 1989-12-12