Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5576094 | Foam boards produced using halogen-free blowing agents | Julien N. R. Callens, Alfons J. S. van Biesen, Gerhard Alicke, Reinhold Weber, Franz-Josef Dietzen +1 more | 1996-11-19 |
| 5453454 | Production of foam boards of high compressive strength from styrene polymers | Gerhard Alicke, Manfred Weilbacher, Hartmut Heinen, Franz-Josef Dietzen, Reinhold Weber +1 more | 1995-09-26 |
| 5137927 | Composite foams of low thermal conductivity | Frieder Hohwiller, Guenther Seybold | 1992-08-11 |
| 5124364 | Composite foams of low thermal conductivity | Frieder Hohwiller, Guenther Seybold | 1992-06-23 |
| 5122291 | Thermal insulating material based on pigment containing silica aerogels | Manfred Mielke, Guenther Seybold, Werner Ostertag, Jochen Fricke, Roland Caps | 1992-06-16 |