Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5576094 | Foam boards produced using halogen-free blowing agents | Alfons J. S. van Biesen, Bernardo Wolff, Gerhard Alicke, Reinhold Weber, Franz-Josef Dietzen +1 more | 1996-11-19 |