Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9663588 | Method for concentrating fibril cellulose and fibril cellulose product | Annikki Vehniäinen, Markus Nuopponen, Pentti Pirkonen, Martina Lille | 2017-05-30 |
| 6284136 | Apparatus for cleaning a filter surface | Timo Tuori, Hannu Sekki, Jorma Ihalainen, Pentti Pirkonen | 2001-09-04 |
| 6217782 | Combined ultrasonic cleaning and washing of filter disks | Timo Tuori, Hannu Sekki, Jorma Ihalainen, Pentti Pirkonen | 2001-04-17 |