Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10491994 | Methods and apparatus for adjusting filtering to adjust an acoustic feedback based on acoustic inputs | — | 2019-11-26 |
| 10206315 | Magnetic shielding apparatus | Jani Samuli Kuivalainen | 2019-02-12 |
| 10027784 | Speaker back cavity | Anders Johan Engberg | 2018-07-17 |
| 9992568 | Method and apparatus for audio playback | — | 2018-06-05 |
| 9800969 | Speaker back cavity | Anders Johan Engberg | 2017-10-24 |
| 9386134 | Speaker back cavity | Anders Johan Engberg | 2016-07-05 |
| 8912873 | Magnetic shielding apparatus | Jani Samuli Kuivallainen, Leo Karkkainen | 2014-12-16 |
| 8755553 | Apparatus | — | 2014-06-17 |
| 8692635 | Sound generating apparatus | — | 2014-04-08 |
| 8292023 | Enclosing adsorbent material | — | 2012-10-23 |
| 5612277 | Catalyst and method for manufacturing the same | Matti H ark onen, Matti Kivioja | 1997-03-18 |
| 5583087 | Method for impregnating catalyst support with platinum | — | 1996-12-10 |
| 5580533 | Catalyst and process for purifying diesel exhaust gases | Matti Kivioja, Sointu Ravola, Teuvo Maunula, Matti H ark onen, Pirkko Virta | 1996-12-03 |