Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6420442 | Flame-proofed polystyrene foamed materials | Franz-Josef Dietzen, Guiscard Glück, Gerd Ehrmann, Gerhard Alicke, Klaus Hahn +2 more | 2002-07-16 |
| 5162487 | Melamine resin moldings having increased elasticity | Juergen Weiser, Wolfgang Reuther, Wolfgang Fath, Heinz Berbner, Onno Graalmann | 1992-11-10 |
| 5084488 | Melamine resin moldings having increased elasticity | Juergen Weiser, Wolfgang Reuther, Wolfgang Fath, Heinz Berbner, Onno Graalmann | 1992-01-28 |
| 4885206 | Foam composite and manufacture thereof | Onno Graalmann, Guenter Kreibiehl, Heinz Weber | 1989-12-05 |
| 4666948 | Preparation of resilient melamine foams | Frank P. Woerner, Peter Neumann, Harald Mahnke, Josef Lamprecht, Dieter Horn +3 more | 1987-05-19 |
| 4530940 | Stabilized melamine resin foams | Frank P. Woerner, Horst Reimann, Harald Mahnke, Peter Neumann, Hanshelmut Kaeppel | 1985-07-23 |