Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7546903 | Elevator system having location devices and sensors | Ari Kattainen, Matti Rasanen | 2009-06-16 |
| 7533763 | Safety device, safety system, and method for supervising safety of an elevator system | Ari Kattainen, Matti Rasanen | 2009-05-19 |