Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880875 | Thermoplastic molding material based on polycarbonate, ASA and vinylaromatics/an-containing copolymers | Georg Wassmuth, Erhard Seiler, Hermann Gausepohl, Klaus Benker | 1989-11-14 |
| 4868235 | Thermoplastic molding materials | Klaus Muehlbach, Michael Portugall, Erhard Seiler, Hermann Brandt | 1989-09-19 |