Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5976322 | Process for producing paper and paperboard having high mechanical strength | — | 1999-11-02 |
| 5587049 | Process for delignifying raw cellulosic material impregnated with monopersulphuric acid | Giulio Calmanti, Gianpiero Sacchi | 1996-12-24 |