Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9856110 | Method and apparatus for monitoring the lubricant content of elevator ropes | — | 2018-01-02 |
| 9708156 | Method and apparatus for controlling movement of an elevator group | — | 2017-07-18 |
| 8890448 | Braking apparatus, electric drive, and elevator system | Antti Kallioniemi, Juha-Matti Nikander, Paavo Merilinna, Risto Komulainen | 2014-11-18 |
| 8744814 | Arrangement and method for protecting a power supply circuit component | Hannu Lehtinen | 2014-06-03 |
| 8350501 | DC/DC bridge | — | 2013-01-08 |
| 7184286 | Bridge for driving a direct-current or alternating current load | Pekka Jahkonen | 2007-02-27 |
| 6898094 | DC/DC bridge control unit for controlling a direct-current load | Pekka Jahkonen | 2005-05-24 |
| 6697273 | Control unit for controlling a direct-current load | Pekka Jahkonen | 2004-02-24 |