Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5460517 | Shaft kiln for burning a lumpy mineral charge | Jiri Pacak | 1995-10-24 |
| 4315735 | Process for calcining mineral raw materials in a uniflow regenerative shaft furnace | Erwin Fussl | 1982-02-16 |