Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6847722 | Method and equipment for attenuating sound in a duct | Seppo Uosukainen, Vesa Valimaki, Kari Kirjavainen, Jukka Lekkala | 2005-01-25 |
| 6178820 | Sensor for measuring acceleration and sound pressure | Kari Kirjavainen, Jukka Lekkala, Seppo Uosukainen | 2001-01-30 |