Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607544 | Process and agent for the oxidative bleaching of wood pulp and for deinking waste paper | Wolfram Salzburger, Silke Eifler | 1997-03-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607544 | Process and agent for the oxidative bleaching of wood pulp and for deinking waste paper | Wolfram Salzburger, Silke Eifler | 1997-03-04 |