Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4201546 | Method and apparatus for the thermal treatment of alkali-containing pulverized raw material to be used in the manufacture of cement | Horst Herchenbach, Rudolf Kuhs, Kurt Schneider | 1980-05-06 |
| 4187071 | Method for the treatment of finely grained material, particularly for the precalcining of cement | Kunibert Brachthauser, Klaus Beisner, Horst Herchenbach | 1980-02-05 |