Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5849159 | Multi-layer headbox with plastic and metal divider plate | Helmut Heinzmann, Wolfgang Ruf, Ulrich Begemann, Thomas Dietz | 1998-12-15 |
| 5645689 | Multilayer headbox | Wolfgang Ruf, Thomas Dietz, Klaus Pimiskern, Gerhard Wernlein | 1997-07-08 |