Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5417374 | System and method for pressure treatment of granular material | Peter Kranz, Franz Goeddecke, Kunibert Laufs | 1995-05-23 |
| 4636379 | Process for producing calcium hydroxide | Heinz Bestek, Hans-Peter Hennecke, Alfred Roeder, Friedrich Schmitz | 1987-01-13 |