Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4635379 | Method of drying material using an indirectly heated system | — | 1987-01-13 |
| 4274911 | Method of cooking cellulose material and preserving the heat and terpentine content of the cooking liquor | Per Andersson | 1981-06-23 |