Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4522649 | Method of furnace operation with high pellet burdens | John L. Howell | 1985-06-11 |
| 4436552 | Method of furnace operation with high pellet burdens | John L. Howell | 1984-03-13 |