Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698603 | Expandable styrene polymers containing recycled material | Dietrich Scherzer, Michael Witt, Maria Lorenz | 1997-12-16 |
| 5616624 | Preparation of bead-form expandable styrene polymers having improved expandability | Michael Witt, Dietrich Scherzer, Dieter Naegele | 1997-04-01 |
| 5596045 | Expandable styrene polymers containing recycled material | Dietrich Scherzer, Wolfram Husemann, Michael Witt, Knut Kaempfer, Gerhard Alicke | 1997-01-21 |
| 5591778 | Process for the preparation of expandable polystyrene | Dietrich Scherzer, Anthony G. Schaefer, Bernhard Schmied | 1997-01-07 |