Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654976 | Method for melting ferrous scrap metal and chromite in a submerged arc furnace to produce a chromium containing iron | Hjalte Rognsaa | 1997-08-05 |
| 5634960 | Scrap melting in a submerged arc furnace | — | 1997-06-03 |