Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7550116 | Method for producing polyesters and a disk ring reactor for the method | Fritz Wilhelm, Michael Reisen, Peter Seidel, Peter Reichwein | 2009-06-23 |
| 7547406 | Method for the direct and continuous production of hollow articles from a polymer melt | Brigitta Otto, Roland Schafer, Holger Bachmann, Stefan Deiss | 2009-06-16 |
| 7431058 | Device for changing nozzles | — | 2008-10-07 |
| 5055273 | Apparatus for processing high viscosity materials | Fritz Wilhelm, Heinz-Gunter Witt | 1991-10-08 |