Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660542 | Cupola burner | William C. Rinker | 1997-08-26 |
| 5601631 | Process for treating metal oxide fines | Deane A. Horne | 1997-02-11 |
| 5601692 | Process for treating noncaking coal to form passivated char | Deane A. Horne, Dennis W. Coolidge, Ernest P. Esztergar | 1997-02-11 |