Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698075 | Process for bleaching a chemical paper pulp in an oxygen-peroxymonosulfuric acid-hydrogen peroxide sequence | Marc Hoyos, Marcel Robberechts, Gilbert Vrambout | 1997-12-16 |
| 5645686 | Process for bleaching a pulp in a sequence including an enzyme stage | Francois Desprez, Johan Devenyns, Pierre Ledoux, Rene Detroz | 1997-07-08 |