Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4459174 | Process for the delignification and bleaching of chemical and semi-chemical cellulosic pulps | Pierre Ledoux | 1984-07-10 |
| 4390395 | Process for the regeneration of waste paper | Jean De Ceuster | 1983-06-28 |