Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4980381 | Preparation of bead-form expandable styrene polymers | Hans Hintz, Uwe Guhr, Klaus Hahn | 1990-12-25 |
| 4433108 | Preparation of styrene suspension polymers | — | 1984-02-21 |
| 4241191 | Manufacture of styrene suspension polymers | Erhard Stahnecker, Rolf Moeller | 1980-12-23 |