Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643970 | Method and apparatus for foam manufacture using carbon dioxide dissolved under pressure | Hans-Michael Sulzbach, Herbert Steilen, Reiner Raffel, Robert Eiben, Wilfried Ebeling | 1997-07-01 |
| 5637277 | Process and device for producing foam casings with CFC-free polyurethane foams | Helmut Duschanek, Bodo Buchel, Kurt Pieper, Werner Kraft | 1997-06-10 |