Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7998314 | Method for the production of paper, cardboard and card | Frank Prechtl, Rainer Blum, Detlef Kannengiesser | 2011-08-16 |
| 7918965 | Method for the production of paper, cardboard and card | Marc Leduc, Simon Champ, Rainer Blum, Andreas Merkel, Knut Menke | 2011-04-05 |