| 8448751 |
Elevator door system |
Christian G. Tonna, Christoph Durand |
2013-05-28 |
| 7246688 |
Elevator door system |
Christian G. Tonna, Christoph Durand |
2007-07-24 |
| 6269910 |
Elevator rescue system |
Richard N. Fargo, Gerard Sirigu, Joseph J. Barna, Barry G. Blackaby |
2001-08-07 |
| 6196355 |
Elevator rescue system |
Richard N. Fargo, Gerard Sirigu, Joseph J. Barna, Barry G. Blackaby |
2001-03-06 |
| 6193018 |
Belt-climbing elevator having drive in counterweight |
Jean Marc Ferrary, Armando Servia, Pascal Rebillard, Richard J. Ericson |
2001-02-27 |
| 6186281 |
Remote storage and reset of elevator overspeed switch |
Chris Pietrzykowski, Gerard Sirigu, Richard N. Fargo, Randy G. Henley, Gurumurthi Ravishankar |
2001-02-13 |
| 6161656 |
Speed and direction indicator for elevator systems |
Herbert Horbrugger, Michael Mann |
2000-12-19 |
| 6138799 |
Belt-climbing elevator having drive in counterweight |
Jean Marc Ferrary, Armando Servia, Pascal Rebillard, Richard J. Ericson |
2000-10-31 |
| 5921351 |
Modular drive mechanism for a passenger conveyor |
— |
1999-07-13 |
| 5841083 |
Blocked door detection for an elevator system |
Uwe Schonauer |
1998-11-24 |
| 5831227 |
Differential magnetic alignment of an elevator and a landing |
Alan Matthew Finn, Jean-Noel Cloux, Peter Herkel, Jean-Pierre Pougny, Armando Servia +1 more |
1998-11-03 |
| 5821478 |
Generation of an elevator door close warning |
Rudiger Lob |
1998-10-13 |
| 5711112 |
Double-drive automatic sliding door operator |
Michael Barten, Rudiger Lob, Mustapha Toutaoui |
1998-01-27 |
| 5682022 |
Active stabilization of serially connected capacitors in high voltage applications |
Sven-Oliver Rainer Kersten |
1997-10-28 |
| 5587565 |
Method for controlling elevator doors |
Rudiger Lob |
1996-12-24 |
| 5491405 |
Level conversion of AC or DC voltage with noise rejection and low power consumption |
Andreas Belkner |
1996-02-13 |
| 5367240 |
Low cost current sensor for fast-switching inverter applications |
Rudiger Lob |
1994-11-22 |
| 5272398 |
Driver for power field-controlled switches with refreshed power supply providing stable on/off switching |
Sven-Oliver Rainer Kersten |
1993-12-21 |