Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Super-capacitor energy storage unit for elevator installations

Super-capacitor energy storage unit for elevator installations

US Patent 6742630 · Granted Jun 1, 2004

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Elevator drive control during power disruption2021
Method for operating elevators to test brakes2015
Elevator with transverse flux drive2007
Emergency power supply device for lift systems2005
Low-noise operation of a machine fed by a pulse inverter1997