Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8540650 | Method and an apparatus for measuring and analyzing movements of a human or an animal using sound signals | Aino Salmi, Väinö Virtanen | 2013-09-24 |
| 8493220 | Arrangement and method to wake up a sleeping subject at an advantageous time instant associated with natural arousal | Väinö Virtanen, Aino Salmi | 2013-07-23 |