Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6864298 | Expandable polyolefin particles | Christian Maletzko, Uwe Keppeler, Klaus Hahn | 2005-03-08 |
| 6727291 | Preparation of expandable propylene polymer beads | Christian Maletzko, Klaus Hahn, Gerd Ehrmann, Franz-Josef Dietzen | 2004-04-27 |
| 6476089 | Expandable olefin bead polymers | Christian Maletzko, Klaus Hahn, Gerd Ehrmann, Franz-Josef Dietzen | 2002-11-05 |
| 6448300 | Expandable olefin bead polymers | Christian Maletzko, Klaus Hahn, Gerd Ehrmann, Franz-Josef Dietzen | 2002-09-10 |