Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6030448 | Method for producing cement clinker | Martin Uhde, Wolfgang Rother | 2000-02-29 |
| 5264654 | Method and apparatus for processing contaminated soils | Franz-Josef Grothaus | 1993-11-23 |
| 5244383 | Method and apparatus for reducing the circulation of salts particularly in cement kilns | Ludger Gunnewig | 1993-09-14 |
| 4579526 | Method and apparatus for the heat treatment of fine-grained material | Horst Kretzer, Heinz-Werner Thiemeyer | 1986-04-01 |
| 4492566 | Method and apparatus for heat treatment of fine-grained material | — | 1985-01-08 |
| 4457082 | Heat exchanger | Wolfgang Rother, Peter Tiggesbaumker, Karl Menzel, Herbert W. Schmelter, Heinrich Weber | 1984-07-03 |
| 4213790 | Process for the production of cement in a fluidized bed | Klaus Bauer, Wolf Goldmann, Horst Kretzer, Heinrich Weber, Rudiger Beyer +6 more | 1980-07-22 |