Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5199623 | Device for supporting, turning and spreading of a web | Jukka Parvinen, Bertel Karlstedt, Pertti Heikkila, Ilkka Jokioinen | 1993-04-06 |
| 4918828 | Method and apparatus for drying a moving web | Reijo Ruottu, Ilkka Jokioinen, Sture Ahlskog | 1990-04-24 |
| 4756183 | Method and apparatus for measuring air permeability of a wall-like or sheet-like element | Raimo Virta | 1988-07-12 |