Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5887703 | Method for distributing material over the width of a conveying grate and push grate for carrying out this method | Hartmut Meyer, Albrecht Wolter, Egbert Steffen | 1999-03-30 |
| 5618104 | Method for cooling white cement clinker | Egbert Steffen, Gerhard Bomba, Franz-Josef Grothaus, Gerhard Zakel | 1997-04-08 |
| 5580005 | Arrangement for crushing and cooling material passing out of a firing oven | Hartmut Meyer | 1996-12-03 |