Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10972015 | Method of initiating a regenerative converter and a regenerative converter | Juhamatti Nikander | 2021-04-06 |
| 10954101 | Elevator brake release monitoring | Ari Kattainen | 2021-03-23 |
| 10934133 | Elevator safety arrangement having earth fault detection | Ari Kattainen, Juha-Matti Aitamurto | 2021-03-02 |