Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691001 | Method for surface treatment of a metallic material | Bror Thomas Johansson, Lena Marie-Louise Wickman | 1997-11-25 |
| 5290401 | Method and a device for separating plastic particles from supensions | Hannu Savisalo, Martti Pulliainen, Timo Laurila, Pentti Järvelä, Esko Paakkonen | 1994-03-01 |
| 5062932 | Procedure and means for separating plastic particles electrically from solutions, in particular from cellulose and paper fibre solutions | Martti Pulliainen, Hannu Savisalo | 1991-11-05 |