Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6476089 | Expandable olefin bead polymers | Christian Maletzko, Klaus Hahn, Isidor de Grave, Gerd Ehrmann | 2002-11-05 |
| 6448300 | Expandable olefin bead polymers | Christian Maletzko, Klaus Hahn, Isidor de Grave, Gerd Ehrmann | 2002-09-10 |
| 6444714 | Method for producing expandable polystyrene particles | Guiscard Glück, Klaus Hahn, Gerd Ehrmann | 2002-09-03 |
| 6420442 | Flame-proofed polystyrene foamed materials | Guiscard Glück, Gerd Ehrmann, Gerhard Turznik, Gerhard Alicke, Klaus Hahn +2 more | 2002-07-16 |