Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767623 | Sandwich panel | Christof Möck | 2004-07-27 |
| 6677040 | Expanded polypropylene particles | Frank Braun, Guiscard Glück, Klaus Hahn, Isidoor De Grave | 2004-01-13 |
| 6060529 | Sound-absorbent foam moldings | Isidoor De Grave | 2000-05-09 |
| 5525636 | Expandable styrene polymers | Rolf Henn, Klaus Hahn, Wolfgang Loth, Walter Heckmann, Uwe Blumenstein +2 more | 1996-06-11 |
| 5252270 | Method of forming foam moldings having varied density regions | Udo Haardt | 1993-10-12 |
| 5180628 | Shock-absorbing propylene polymer composite moldings | Udo Haardt, Erhard Seiler, Harald Schwager, Friedrich Domas | 1993-01-19 |
| 5164257 | Foam moldings having various density regions, the production thereof, and a mold therefor | Udo Haardt | 1992-11-17 |
| 5077322 | Foams based on an olefin copolymer | Isidoor De Grave, Joachim Fischer, Wolfram Koegel, Onno Graalmann, Juergen Kerth +1 more | 1991-12-31 |
| 5045256 | Expansion of shrunk foam particles of propylene polymers | Isidoor De Grave, Udo Haardt, Wolfram Koegel, Fritz E. Krueckau | 1991-09-03 |
| 5006566 | Preparation of foams having a high compressive strength | Reinhold Weber, Manfred Weilbacher, Ludwig Zuern, Hans D. Zettler, Klaus Hinselmann | 1991-04-09 |
| 4894191 | Preparation of polyolefin foams | Ludwig Zuern, Hans D. Zettler, Wolfgang Schneider, Gerhard Dembek | 1990-01-16 |