Inventor
ZAHARIA VLAD
US23 patents
⚠️ This page may combine multiple inventors who share the name “ZAHARIA VLAD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OTIS ELEVATOR CO
21 patentsUS6707374B1Mar 16, 2004
Elevator access security
OTIS ELEVATOR CO124 citations98
US6435315B1Aug 20, 2002
Absolute position reference system for an elevator
OTIS ELEVATOR CO119 citations98
US5952626ASep 14, 1999
Individual elevator call changing
OTIS ELEVATOR CO107 citations98
US6209685B1Apr 3, 2001
Selective, automatic elevator call registering system
OTIS ELEVATOR CO87 citations97
US7328775B2Feb 12, 2008
Destination entry system with delayed elevator car assignment
OTIS ELEVATOR CO62 citations96
US7353915B2Apr 8, 2008
Automatic destination entry system with override capability
OTIS ELEVATOR CO104 citations95
US7597176B2Oct 6, 2009
Elevator car position determining system and method using a signal filling technique
OTIS ELEVATOR CO44 citations92
US7559408B2Jul 14, 2009
Correlating sounds to elevators serving destination floors
OTIS ELEVATOR CO24 citations92
US5708416AJan 13, 1998
Wireless detection or control arrangement for escalator or moving walk
OTIS ELEVATOR CO37 citations92
US5316121AMay 31, 1994
Escalator missing step detection
OTIS ELEVATOR CO27 citations92
US5295567AMar 22, 1994
System for emergency stopping of escalator handrail
OTIS ELEVATOR CO32 citations92
US5361887ANov 8, 1994
Apparatus for detecting an irregularity in the frequency of steps passing a particular point within a passenger conveying device
OTIS ELEVATOR CO20 citations91
US7793762B2Sep 14, 2010
Destination entry passenger interface with multiple functions
OTIS ELEVATOR CO20 citations88
US5799755ASep 1, 1998
Linear motor transfer of cab horizontally between elevator and bogey platforms
OTIS ELEVATOR CO29 citations88
US6483047B1Nov 19, 2002
Elevator brake load weighing system
OTIS ELEVATOR CO26 citations86
US5886497AMar 23, 1999
Control arrangement for escalator or moving walk
OTIS ELEVATOR CO18 citations84
US6943508B2Sep 13, 2005
Tubular linear synchronous motor control for elevator doors
OTIS ELEVATOR CO12 citations81
US5245315ASep 14, 1993
Fiber optic escalator handrail intrusion detector shield
OTIS ELEVATOR CO16 citations74
US5186300AFeb 16, 1993
Starting circuit and method for escalators and moving walks
OTIS ELEVATOR CO13 citations74
US7202615B2Apr 10, 2007
Tubular linear synchronous motor control for elevator doors
OTIS ELEVATOR CO6 citations71
US5645156AJul 8, 1997
Device for monitoring escalator handrail speed
OTIS ELEVATOR CO17 citations67