Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5277134 | Coal mill control process | Gunter Klotz | 1994-01-11 |
| 4653699 | Coal-mill classifier | — | 1987-03-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5277134 | Coal mill control process | Gunter Klotz | 1994-01-11 |
| 4653699 | Coal-mill classifier | — | 1987-03-31 |