Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861368 | Method for producing iron | Jonathan P. Moodie, Richard E. Turner, deceased | 1989-08-29 |
| 4827486 | Process for increasing the energy input in electric arc furnaces | Ernst Fritz | 1989-05-02 |
| 4798624 | Method for the melt reduction of iron ores | Hans-Georg Fassbinder, Richard E. Turner, deceased | 1989-01-17 |