Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4661205 | Method of bleaching lignocellulosic material with peroxide catalyzed with a salt of a metal | Steven Say-Kyoun OW | 1987-04-28 |
| 4283251 | Ozone effluent bleaching | — | 1981-08-11 |
| 4196043 | Kraft pulp bleaching and recovery process | — | 1980-04-01 |