Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5554258 | Flotation process for mechanical pulp using a surface active agent | Norbert Nimmerfroh, Ralf Grimmer | 1996-09-10 |
| 5362868 | Thinning of granular starch | Wilfried Eul | 1994-11-08 |
| 5227022 | Process for increasing pulp brightness with zeolites and easily decomposable organic chelating agents | Wolfgang Leonhardt, Kurt Schmidt, Holger Glaum | 1993-07-13 |
| 5073301 | Process for stabilization of the viscosity of wood pulps | Wilfried Eul | 1991-12-17 |