Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430057 | Calciner screw construction | Donald P. Hoover, Michael A. Csapo | 1984-02-07 |
| 4237801 | Furnace lining or burner cup element | — | 1980-12-09 |
| 4216183 | Method for making furnace lining | — | 1980-08-05 |