Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5905096 | Continuous production process of expandable styrene polymer beads | Peter Nikolaus Lay, Swen Ruck, Michael Schiessl, Michael Witt, Hans D. Zettler +5 more | 1999-05-18 |
| 4940629 | Fiber reinforced thermoplastic integral skin foams and manufacture thereof | Heinz Weber, Gerhard Bleckmann, Gerd Ehrmann, Gerhard Heinz, Lothar Schlemmer | 1990-07-10 |
| 4894191 | Preparation of polyolefin foams | Hermann Tatzel, Ludwig Zuern, Hans D. Zettler, Wolfgang Schneider | 1990-01-16 |