Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10006169 | Method for delignifying and bleaching pulp | Thomas Dietz, Bernd Hopf, Sigrid Wegmann, Verena Illhardt | 2018-06-26 |
| 5554258 | Flotation process for mechanical pulp using a surface active agent | Hans U. Suess, Norbert Nimmerfroh | 1996-09-10 |