Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653041 | Drying method and drying module as well as dryer sections that make use of same, in particular for a high-speed paper machine | Antti Ilmarinen, Antti Kuhasalo, Pertti Heikkila, Heikki Ilvespaa, Jouko Yli-Kauppila +6 more | 1997-08-05 |
| 5471766 | Method in contact-free air-drying of a material web as well as a nozzle-blow-box and a pulp dryer that make use of the method | Pertti Heikkila | 1995-12-05 |
| 5199623 | Device for supporting, turning and spreading of a web | Raimo Rajala, Jukka Parvinen, Bertel Karlstedt, Pertti Heikkila | 1993-04-06 |
| 4918828 | Method and apparatus for drying a moving web | Reijo Ruottu, Raimo Rajala, Sture Ahlskog | 1990-04-24 |