Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10392574 | Charge carbon briquette for electric arc steelmaking furnace | John D. Shoue | 2019-08-27 |
| 4813055 | Furnace cooling system and method | Ronald G. Heggart, Randy J. Engstrom | 1989-03-14 |
| 4715042 | Furnace cooling system and method | Ronald G. Heggart, Randy J. Engstrom | 1987-12-22 |