Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7176309 | Method for producing melem-free melamine and quenching agents | Frank Schröder, Wolfgang Ruech, Christoph Neumüller, Hans Wagner | 2007-02-13 |
| 7022848 | Process for the production of melamine | Hartmut Bucka, Gerhard Coufal | 2006-04-04 |
| 6815545 | Method for producing melamine | Hartmut Bucka, Gerhard Coufal | 2004-11-09 |