Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10056666 | Tuning element for radio frequency resonator | — | 2018-08-21 |
| 8125296 | Radio device antenna filter arrangement | Jouni Ala-Kojola | 2012-02-28 |
| 7821354 | Directional coupler | — | 2010-10-26 |
| 7526263 | Input arrangement for a low-noise amplifier pair | Harri Narhi, Jukka Puoskari, Pertti Koskela | 2009-04-28 |
| 7466970 | Arrangement for dividing a filter output signal | Harri Narhi, Jukka Puoskari, Pertti Koskela | 2008-12-16 |
| 6570472 | Low-pass filter | — | 2003-05-27 |
| 6566985 | High-pass filter | Tapani Vistbacka | 2003-05-20 |
| 6566984 | Resonator filter with reduced variation in the pass band attenuation | Tapani Vistbacka | 2003-05-20 |
| 5717368 | Varactor tuned helical resonator for use with duplex filter | — | 1998-02-10 |
| 5689221 | Radio frequency filter comprising helix resonators | Jari Pelkonen | 1997-11-18 |
| 5594395 | Diode tuned resonator filter | — | 1997-01-14 |
| 5351023 | Helix resonator | — | 1994-09-27 |
| 4977383 | Resonator structure | — | 1990-12-11 |