Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7306701 | Production of paper, board and cardboard | Rainer Blum, Ralf Hemel, Norbert Mahr | 2007-12-11 |
| 4749444 | Production of paper and cardboard | Friedrich Linhart, Werner Auhorn, Manfred Matz | 1988-06-07 |