Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6911117 | Method and equipment for attenuation of oscillation in a paper machine or in a paper finishing device | Jouko Karhunen, Arto Puranen, Esa Lehtovirta, Erkki Hietamäki | 2005-06-28 |
| 6521090 | Method and device for changing the natural frequency of a nip roll construction in a paper or board machine | Juhani Vestola, Arto Puranen | 2003-02-18 |
| 5915297 | Apparatus for preventing vibrations of a roll set | Esa Lehtovirta, Markku Salo, Kari Luostarinen | 1999-06-29 |
| 5904775 | Method and device for applying a coating agent onto a moving base | Markku Salo, Jorma Ramstedt | 1999-05-18 |
| 5768985 | Method for preventing vibrations of a roll set | Esa Lehtovirta, Markku Salo, Kari Luostarinen | 1998-06-23 |