Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7607515 | Elevator evacuation apparatus | — | 2009-10-27 |
| 7556126 | Elevator escape arrangement | — | 2009-07-07 |
| 7503433 | Elevator | — | 2009-03-17 |
| 7392885 | Emergency escape apparatus for elevator | — | 2008-07-01 |
| 7316297 | Elevator escape device | — | 2008-01-08 |
| 6425461 | Double backup power for elevator | — | 2002-07-30 |
| 6116380 | Elevator provided with emergency escape | — | 2000-09-12 |
| 5906252 | Oil pressure auxiliary escape device of elevator | — | 1999-05-25 |
| 5890565 | Elevator emergency escape device | — | 1999-04-06 |
| 5737998 | Heavy-load hydraulic or air cylinder | — | 1998-04-14 |