Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4687146 | Apparatus for fiberizing and screening of fibrous materials | — | 1987-08-18 |
| 4558477 | Process for washing fibre stock | — | 1985-12-17 |
| 4557120 | Apparatus for washing fibre stock | — | 1985-12-10 |
| 4459907 | Press for removing water | — | 1984-07-17 |
| 4435122 | Method and apparatus for pumping fiber suspensions | Toivo Niskanen, Jorma Tuomaala | 1984-03-06 |
| 4222818 | Method for treatment of lignocellulosic material with chlorine | Johan Gullichsen | 1980-09-16 |