Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4490168 | Process of making steel by melting sponge iron in an electric arc furnace | Lothar Formanek, Martin Hirsch, Wolfram Schnabel, Harry Serbent, Klaus-Dietrich Fritzsche +1 more | 1984-12-25 |