Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4746404 | Chip presteaming and air washing | — | 1988-05-24 |
| 4693785 | Digester having plural screens and means for controlling the liquid withdrawal | — | 1987-09-15 |
| 4632729 | Chip presteaming and air washing | — | 1986-12-30 |
| 4568419 | Method of treating comminuted cellulosic fibrous material in a vertical vessel | — | 1986-02-04 |
| 4564144 | Stationary diffuser | — | 1986-01-14 |
| 4521315 | Pulp thickening utilizing stationary screens | — | 1985-06-04 |
| 4468319 | Stationary diffuser | — | 1984-08-28 |
| 4441224 | Method of continuously treating a fibrous suspension | — | 1984-04-10 |