Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7271743 | Switch arrangement and a switch matrix structure for a keypad | Esa-Sakari Maatta, Jari Saukko | 2007-09-18 |
| 6835923 | Method and apparatus for self-monitoring of proximity sensors | Tiina Hamalainen, Risto Pirhonen, Vesa Peili | 2004-12-28 |