Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8394912 | Process and apparatus for the preparation of polycarbonate | Frank Doebert, Andreas Stremmel, Christoph Biedron, Stephan Laue, Johann Rechner +9 more | 2013-03-12 |
| 5667759 | Method for manufacturing alkali chromates from chromium ore | Rainer Bellinghausen, Heinrich Helker, Paul Strehlow, Hans-Heinrich Moretto, Bernhard Spreckelmeyer +5 more | 1997-09-16 |
| 5505918 | Method for manufacturing alkali chromates from chromium ore | Michael Batz, Rainer Bellinghausen, Hans-Dieter Block, Heinrich Helker, Norbert Lonhoff +5 more | 1996-04-09 |
| 5334692 | Highly branched polyphosphonates based on melamine | Bernhard Hess, Wolfgang Schulz-Schlitte, Jurgen Kirsch, Dieter Freitag, Hans-Georg Gehrke +1 more | 1994-08-02 |
| 5233088 | Process for the preparation of alkali metal salts of 2-phosphonobutane-1,2,4-tricarboxylic acid | Hans-Dieter Block, Roland Kleinstuck | 1993-08-03 |
| 5216113 | Highly branched polyphosphonates | Wolfgang Schulz-Schlitte, Jurgen Kirsch, Karsten-Josef Idel, Gerd Fengler, Hans-Dieter Block | 1993-06-01 |
| 5159074 | Aminomethanephosphonic acid aryl esters, a process for their production and their use | Hans-Dieter Block, Wolfgang Schulz-Schlitte | 1992-10-27 |