Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Door state monitoring by means of three-dimensional sensor

Door state monitoring by means of three-dimensional sensor

US Patent 6973998 · Granted Dec 13, 2005

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Configuring accessing right to elevator control system2020
Method for operating an elevator system and an elevator control device operating2018
Elevator system2018
Double-decker lift installation2015
Elevator installation2014
Remote recording of maintenance operations for an elevator or escalator installa2011
Safety circuit for lift doors2009
Thermal protection of electromagnetic actuators2009
Elevator installation, a method of operating this elevator installation, and met2008
Elevator vibration damping apparatus and method2008
Safety system for an elevator2008
Safety system for an elevator structure2008