Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5458833 | Method of thermal treatment of mineral raw material | Thomas Hammer, Heinzjosef Poggenpohl, Rainer Prange, Alfred Roeder | 1995-10-17 |
| 5246648 | Production of sintered dolomite in a rotary kiln | Thomas Hammer, Heinzjosef Poggenpohl, Alfred Roeder | 1993-09-21 |
| 4394454 | Method for making sintered dolomite with a low porosity and a good hydration stability | Karlheinz Rosener, Alfred Roeder, Wolfgang Munchberg, Max Chmiel | 1983-07-19 |