Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5591778 | Process for the preparation of expandable polystyrene | Dietrich Scherzer, Klaus Hahn, Bernhard Schmied | 1997-01-07 |
AS
Anthony G. Schaefer
Overall (1997): #175,746 of 185,788Top 95%
1
Patents 1997