Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5171511 | Tuyere and method for discharging gas into a furnace | Sudhir Sharma, Ronald J. Selines, Michael F. Riley, Alan Barlow, Allen H. Chan | 1992-12-15 |
| 4898368 | Wear resistant metallurgical tuyere | Robert C. Tucker, Jr. | 1990-02-06 |