Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7347423 | Arrangement in connection with mechanical seal | Hannu Trygg | 2008-03-25 |
| 5924446 | Control apparatus for liquid medium | Alpo Ikonen, Hannu Trygg | 1999-07-20 |
| 4773655 | Slide ring seal | Markku Lummila, Esko Lopperi, Juhani Ljokkoi, Juhani Kuusela | 1988-09-27 |
| 4700953 | Slide-ring seal | Juhani Kuusela, Esko Lopperi, Markku Lummila, Pertti Saksala, Tuomo Suhonen | 1987-10-20 |