Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7972478 | Method of producing high dry strength paper and cardboard and paper and cardboard thus obtained | René Hund, Christian Jehn-Rendu | 2011-07-05 |
| 7883603 | Method for making paper and cardboard with high dry strength and resulting papers and cardboards | René Hund, Christian Jehn-Rendu | 2011-02-08 |