Issued Patents All Time
Showing 1–13 of 13 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, Gunther Koeberer, Egbert Steffen | 1999-03-30 |
| 5203513 | Wear-resistant surface armoring for the rollers of roller machines, particularly high-pressure roller presses | Guenter Keller, Jakob Ansen | 1993-04-20 |
| 5158182 | Sifter | Frank Fischer-Helwig, Albert Suessegger | 1992-10-27 |
| 5114131 | Circulation-type grinding system for grinding brittle material | Siegfried Strasser, Franz Goeddecke | 1992-05-19 |
| 4891007 | Method and apparatus for the manufacture of cement from raw cement meal | Horst Herchenbach, Fritz Rodenhauser | 1990-01-02 |
| 4747879 | Method and apparatus for the thermal treatment of meal-like raw materials | Horst Herchenbach | 1988-05-31 |
| 4640203 | Method and apparatus for burning combustible waste materials | Rolf Hartmann, Horst Herchenbach, Alexander Grisar | 1987-02-03 |
| 4640681 | Method and apparatus for the removal of harmful and waste materials by combustion | Eberhard Steinbiss, Horst Herchenbach | 1987-02-03 |
| 4634583 | Method for the desulfurization of flue gas of a firing system | Horst Herchenbach | 1987-01-06 |
| 4556428 | Method for the manufacture of calcareous bonding agents, particularly cement | Horst Herchenbach | 1985-12-03 |
| 4507153 | Method and apparatus for the heat treatment of a fine grained product | Horst Herchenbach, Eberhard Steinbiss | 1985-03-26 |
| 4504319 | Method and apparatus for burning cement clinker | Horst Herchenbach | 1985-03-12 |
| 4496396 | Method and apparatus for burning fine grained material, particularly raw cement meal | Eberhard Steinbiss, Horst Herchenbach, Hubert Ramesohl | 1985-01-29 |