Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7594564 | Elevator system | Marja-Liisa Siikonen, Janne Sorsa, Jukka-Pekka Sarjanen | 2009-09-29 |
| 7588126 | Building evacuation elevator system | Marja-Liisa Siikonen | 2009-09-15 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7594564 | Elevator system | Marja-Liisa Siikonen, Janne Sorsa, Jukka-Pekka Sarjanen | 2009-09-29 |
| 7588126 | Building evacuation elevator system | Marja-Liisa Siikonen | 2009-09-15 |