Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5856371 | Polyurethane sandwich structure element and process for production thereof | Wolfgang Grimm, Heinz Hausmann, Hans Mandel | 1999-01-05 |
| 4500656 | Process for the preparation of a cellular polyurethane | Werner Rasshofer | 1985-02-19 |