Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647876 | Method of removing volatile metals from slag using an acid wash | John Duckett Winter, John Saunders Stevenson, Jerrold Samuel Kassman, Harry WIESE, George N. Richter +1 more | 1997-07-15 |