Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7036242 | Impingement drying unit and a dryer section | Antti Komulainen, Matti Kurki, Martti Salminen, Kari Juppi, Juha Kaihovirta | 2006-05-02 |
| 6365004 | Method and apparatus for drying a paper web | Kristian Hamstr{haeck over (o)}m, Harri Happonen, Juha Lipponen, Jarkko Nurmi, Juha OJANEN +1 more | 2002-04-02 |
| 6280576 | After-dryer in a paper machine | Pasi Ahonen | 2001-08-28 |
| 6193840 | Method for producing surface-treated paper | Seppo Elijoki, Heikki Ilvespaa, Reima Kerttula | 2001-02-27 |
| 6126787 | Dry end of a paper machine | Seppo Elijoki, Heikki Ilvespaa, Reima Kerttula | 2000-10-03 |
| 6101735 | Dryer section in a paper machine in which impingement and/or ventilation hoods are used | Hans Sundqvist | 2000-08-15 |
| 6065222 | Dryer sections with intermediate calendering in a paper machine | Juha Kaihovirta, Allan Liedes | 2000-05-23 |
| 6004430 | Method and device for enhancing the run of a paper web in a paper machine | Heikki Ilvespaa, Juha Kaihovirta, Jorma Laapotti | 1999-12-21 |
| 5913587 | Dryer sections with intermediate calendering in a paper machine | Juha Kaihovirta, Allan Liedes | 1999-06-22 |
| 5894679 | Dryer sections with intermediate calendering in a paper machine | Juha Kaihovirta, Allan Liedes | 1999-04-20 |
| 5865955 | Method and device for enhancing the run of a paper web in a paper machine | Heikki Ilvespaa, Juha Kaihovirta, Jorma Laapotti | 1999-02-02 |
| 5837101 | Device for threading a paper web | Heikki Ilvespaa | 1998-11-17 |
| 5756156 | Method for producing surface-treated paper and dry end of a paper machine | Seppo Elijoki, Heikki Ilvespaa, Reima Kerttula | 1998-05-26 |
| 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, Pertti Heikkila, Heikki Ilvespaa, Jouko Yli-Kauppila, Ilkka Jokioinen +6 more | 1997-08-05 |
| 5539999 | Dryer section of a paper machine with selected diameter drying cylinders at selected distances apart | — | 1996-07-30 |
| 5495678 | Drying module and dryer sections that make use of same, in particular for a high-speed paper machine | Antti Ilmarinen, Heikki Ilvespaa/, Jouko Yli-Kauppila, Pertti Heikkila/, Iikka Jokioinen +6 more | 1996-03-05 |
| 5383287 | Method and wire group in a dryer section provided with a single-wire draw | — | 1995-01-24 |
| 5024729 | Suction roll with turbulence suppression element | Olavi Viitanen, Heikki Ilvespaa | 1991-06-18 |
| 4657678 | Twin hydrocyclone | Pentti Vikio | 1987-04-14 |
| 4608174 | Feed and accept duct system for hydrocyclones | Seppo K. Kokkonen, Erkki Savolainen, Juha Titoff, Jorma Vento, Pentti Vikio | 1986-08-26 |
| 4491067 | Bark press | Ossi Kipelainen, Juhani Kyytsonen | 1985-01-01 |