Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4449701 | Tuyere for the injection of gases into a metallurgical vessel | James Cunningham, Jai K. Pearce | 1984-05-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4449701 | Tuyere for the injection of gases into a metallurgical vessel | James Cunningham, Jai K. Pearce | 1984-05-22 |