Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5686533 | Polypropylenes having a reduced tendency to white fracture | Klaus Bernreitner, Norbert Hafner, Kurt Hammerschmid, Hermann Heinemann | 1997-11-11 |
| 5665820 | Modified elastomeric polypropylenes | Dirk Leistner, Manfred Ratzsch, Achim Hesse, Norbert Hafner, Klaus Bernreitner | 1997-09-09 |