Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348256 | Process for controlling the supply of delignifying and/or bleaching chemicals in the continuous delignification of lignocellulosic material | John R. Bergstrom | 1982-09-07 |
| 4222819 | Process for the acid bleaching of cellulose pulp with peroxides | Greta K. Fossum | 1980-09-16 |