Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5896948 | Reserve power system | Seppo Suur-Askola, Timo Lehtonen | 1999-04-27 |
| 5894910 | Procedure for controlling an elevator | Seppo Suur-Askola, Timo Lehtonen | 1999-04-20 |
| 5712457 | Apparatus for regulating an elevator motor | Seppo Suur-Askola | 1998-01-27 |
| 5239142 | Selection of an elevator for service based on passenger location and elevator travel time | Riitta Partanen-Jokela | 1993-08-24 |
| 5107962 | Vertical transport system in a building | — | 1992-04-28 |
| 4895223 | Method for sub-zoning an elevator group | Riitta Partanen-Jokela | 1990-01-23 |
| 4844204 | Procedure for modernizing the control system of a lift | Seppo Ovaska | 1989-07-04 |
| 4838385 | Method for coordinating elevator group traffic | — | 1989-06-13 |
| 4346789 | Lift battery control system | — | 1982-08-31 |