Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6594135 | Filter | — | 2003-07-15 |
| 5793269 | Stepwise regulated filter having a multiple-step switch | Pertti Nissinen | 1998-08-11 |
| 5739735 | Filter with improved stop/pass ratio | Jarmo Pyykko | 1998-04-14 |
| 5734305 | Stepwise switched filter | — | 1998-03-31 |
| 5627502 | Resonator filter with variable tuning | — | 1997-05-06 |
| 5585771 | Helical resonator filter including short circuit stub tuning | Seppo Ojantakanen | 1996-12-17 |
| 5570071 | Supporting of a helix resonator | — | 1996-10-29 |
| 5304968 | Temperature compensated resonator | Jorma Ohtonen | 1994-04-19 |