Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8869945 | Supplemental elevator safety system | Ari Harkonen, Sakari Korvenranta, Ari Kattainen, Hannu Ahrnberg, Risto Jokinen | 2014-10-28 |
| 8373345 | Control of the lighting of an elevator car | Tatu Mattila, Seppo Ketoviita | 2013-02-12 |
| 8207700 | Electric motor drive | Ari Kattainen | 2012-06-26 |
| 7980363 | Elevator safety arrangement having safety spaces | Ari Kattainen, Kimmo Heikkilä | 2011-07-19 |
| 7896139 | Guide-rail brake | Tomi Torttila | 2011-03-01 |
| 7896138 | Elevator arrangement | Ari Kattainen | 2011-03-01 |
| 7891467 | Elevator safety arrangement having safety spaces | Ari Kattainen, Kimmo Heikkilä | 2011-02-22 |
| 7781997 | Method and apparatus for braking a motor | Antti Kallioniemi | 2010-08-24 |
| 7740110 | Elevator brake and brake control circuit | Ari Kattainen | 2010-06-22 |
| 7681694 | Energy storage system for elevators | Esko Aulanko, Sakari Korvenranta, Pekka Jahkonen | 2010-03-23 |
| 7617911 | Method and system for detecting and stopping uncontrolled movement of an elevator car in an elevator | Tatu Mattila, Seppo Ketoviita | 2009-11-17 |