Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9206140 | Water recycling in a melamine production process | Arne Schadt, Robert Schlesinger, Gregor Demel, Franz Hintermüller | 2015-12-08 |
| 8673158 | Process for cleaning wastewaters from melamine plants | Wolfgang Ruech, Thomas Allan Wallek | 2014-03-18 |
| 7678267 | Thermal water treatment device | Wolfgang Ruech, Frank Schröder | 2010-03-16 |
| 7445722 | Thermal water treatment method | Wolfgang Ruech, Frank Schröder | 2008-11-04 |
| 7311759 | Process for purifying off-gases of a melamine plant | Frank Schröder, Hartmut Bucka, Gerhard Coufal | 2007-12-25 |
| 7176309 | Method for producing melem-free melamine and quenching agents | Frank Schröder, Wolfgang Ruech, Ferdinand Koglgruber, Hans Wagner | 2007-02-13 |