Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11097922 | Current cut-off arrangement of an elevator | Ari Kattainen, Juha-Matti Aitamurto, Arto Nakari | 2021-08-24 |
| 11008197 | Method for performing a manual drive in an elevator after mains power-off | Ari Kattainen, Pasi Raassina | 2021-05-18 |
| 10972015 | Method of initiating a regenerative converter and a regenerative converter | Lauri Stolt | 2021-04-06 |