Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6727291 | Preparation of expandable propylene polymer beads | Christian Maletzko, Klaus Hahn, Isidor de Grave, Franz-Josef Dietzen | 2004-04-27 |
| 6703431 | Flexible open-celled microcellular polymer foams | Franz-Josef Dietzen, Hans-Joachim Hähnle, Serguei Evsioukov, Gunnar Schornick, Rüdiger Funk | 2004-03-09 |