DF

Donald L. Friend

US United States Steel: 1 patents #107 of 309Top 35%
📍 Olympia Fields, IL: #26 of 47 inventorsTop 60%
🗺 Illinois: #48,934 of 84,256 inventorsTop 60%
Overall (All Time): #4,116,313 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4213829 Retractable hood for transfer of coke John A. Grosko, Richard B. Liniger, II 1980-07-22