Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6174369 | Device for impregnation of webs of porous materials | Udo Unger | 2001-01-16 |
| 5690741 | Arrangement for impregnating webs of porous material | Ernst Klas, Udo Unger | 1997-11-25 |
| 4774107 | Process and apparatus for applying liquid, pasty or foamy substances to both sides of webs of material | Kurt von Kwiatkowski, Heinrich Mortl, Rainer Schmidt | 1988-09-27 |