Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8373345 | Control of the lighting of an elevator car | Timo Syrman, Seppo Ketoviita | 2013-02-12 |
| 7617911 | Method and system for detecting and stopping uncontrolled movement of an elevator car in an elevator | Seppo Ketoviita, Timo Syrman | 2009-11-17 |