Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5833735 | Method of making steel | Walter Pfaff | 1998-11-10 |
| 5376161 | Steel making process including transporting spong iron briquettes | Hans-Georg Bergendahl | 1994-12-27 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5833735 | Method of making steel | Walter Pfaff | 1998-11-10 |
| 5376161 | Steel making process including transporting spong iron briquettes | Hans-Georg Bergendahl | 1994-12-27 |