| Patent No. | Patent Title: |
| 5587565 | Method for controlling elevator doors |
| 5563494 | Method of monitoring the charging of sealed nickel storage cells,... |
| 5544721 | Method and apparatus for adjusting an elevator car based on store... |
| 5531294 | Bias torque for elevator hoist drive to avoid rollback, rollforwa... |
| 5511635 | Floor population detection for an elevator system |
| 5509504 | Velocity regulated, open current loop, variable voltage, variable... |
| 5510690 | Battery pack, battery discrimination control apparatus and method... |
| 5509505 | Arrangement for detecting elevator car position |
| 5503249 | Procedure for controlling an elevator group |
| 5503248 | Maintaining open loop current drive to linear induction motor |
| 5495918 | Smooth and quiet linear induction motor elevator door operation |
| 5497067 | Battery charger with timer-controlled charging, shut-off and rese... |
| 5493197 | Battery charge control circuit |
| 5490580 | Automated selection of a load weight bypass threshold for an elev... |
| 5488283 | Vehicle battery system providing battery back-up and opportunity ... |
| 5488282 | System and method for reconditioning spacecraft battery |
| 5487451 | System and method for determining the availability of an elevator... |
| 5488284 | Battery charger systems and methods |
| 5487448 | Device for monitoring a control unit |
| 5486993 | Controlling apparatus for high frequency high voltage power sourc... |
| 5485897 | Elevator display system using composite images to display car pos... |
| 5483142 | Precharge circuit having microprocessor-based firing angle contro... |
| 5482143 | Method of controlling a plurality of elevators moving in a common... |
| 5480005 | Elevator swing car assignment to plural groups |
| 5480006 | Elevator downpeak sectoring |
| 5479085 | Method and apparatus for measuring residual capacity of an e... |
| 5479083 | Non-dissipative battery charger equalizer |
| 5477942 | Push button assembly |
| 5476157 | Elevator control system with elevator hoistway operation monitori... |
| 5476158 | Rotor time constant adaptation for induction motor in vector cont... |
| 5477129 | Charge level display method and apparatus for a battery of an ele... |
| 5467844 | Assigning a hall call to a full elevator car |
| 5467005 | Battery charger which accounts for initial surge in battery volta... |
| 5467007 | Charging apparatus |
| 5460244 | Elevator control apparatus using parallel converters and inverter... |
| 5460245 | Elevator swing car service of interrise hall calls |
| 5461297 | Series-parallel switchable capacitor charging system |
| 5459388 | Battery pack with minimum hard wiring connection for portable com... |
| 5454448 | Elevator call buttons having plural illuminated indications of ... |
| 5447211 | Pneumatic elevator by depressure |
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