Inventor
IZARD JEFFREY M
US7 patents
⚠️ This page may combine multiple inventors who share the name “IZARD JEFFREY M”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OTIS ELEVATOR CO
5 patentsUS6459599B1Oct 1, 2002
Determining phase of AC mains in PWM controlled converters without voltage sensors
OTIS ELEVATOR CO30 citations91
US5631452AMay 20, 1997
System for position loss recovery for an elevator car
OTIS ELEVATOR CO20 citations90
US6601679B2Aug 5, 2003
Two-part wireless communications system for elevator hallway fixtures
OTIS ELEVATOR CO36 citations89
US10654682B2May 19, 2020
Conveyance system having paralleled drives
OTIS ELEVATOR CO1 citations61
US8006808B2Aug 30, 2011
Managing an encoder malfunction in an elevator drive system
OTIS ELEVATOR CO4 citations61