Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805554 | Plant and method for the production of cement clinker | Brentrup Ludger | 2004-10-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805554 | Plant and method for the production of cement clinker | Brentrup Ludger | 2004-10-19 |