Inventor
HERKEL PETER
DE31 patents
⚠️ This page may combine multiple inventors who share the name “HERKEL PETER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OTIS ELEVATOR CO
20 patentsUS6173814B1Jan 16, 2001
Electronic safety system for elevators having a dual redundant safety bus
OTIS ELEVATOR CO235 citations97
US6170614B1Jan 9, 2001
Electronic overspeed governor for elevators
OTIS ELEVATOR CO59 citations95
US5677519AOct 14, 1997
Elevator leveling adjustment
OTIS ELEVATOR CO30 citations90
US8365870B2Feb 5, 2013
Foldable handrail and safety switch arrangement on top of an elevator car
OTIS ELEVATOR CO19 citations89
US5765664AJun 16, 1998
Elevator drive fault detector
OTIS ELEVATOR CO21 citations86
US6591947B2Jul 15, 2003
Use of multi-state sensors
OTIS ELEVATOR CO13 citations82
US10442660B2Oct 15, 2019
Elevator brake control system
OTIS ELEVATOR CO2 citations73
US9938115B2Apr 10, 2018
System and method for limiting over-voltage in power supply system
OTIS ELEVATOR CO6 citations72
US12012307B2Jun 18, 2024
Elevator safety system
OTIS ELEVATOR CO2 citations71
US11485608B2Nov 1, 2022
Elevator safety system
OTIS ELEVATOR CO4 citations71
US10787341B2Sep 29, 2020
Elevator control system and elevator system having inspection control station
OTIS ELEVATOR CO3 citations68
US10947087B2Mar 16, 2021
Elevator safety system and method of operating an elevator system
OTIS ELEVATOR CO0 citations61
US11414297B2Aug 16, 2022
Elevator safety device
OTIS ELEVATOR CO0 citations55
US11535487B2Dec 27, 2022
Elevator safety system
OTIS ELEVATOR CO0 citations52
US11440773B2Sep 13, 2022
Automatic rescue operation in an elevator system
OTIS ELEVATOR CO0 citations52
US11014781B2May 25, 2021
Elevator safety system and method of monitoring an elevator system
OTIS ELEVATOR CO0 citations50
US12559349B2Feb 24, 2026
Elevator safety systems with landing door monitoring
OTIS ELEVATOR CO0 citations49
US11993481B2May 28, 2024
Elevator system
OTIS ELEVATOR CO0 citations49
US10155640B2Dec 18, 2018
Elevator system using rescue storage device for increased power
OTIS ELEVATOR CO1 citations47
US11565911B2Jan 31, 2023
Electronic test nodes for automatic check of a safety chain
OTIS ELEVATOR CO0 citations41
HERKEL PETER
4 patentsUS9051155B2Jun 9, 2015
Elevator rescue system including communications over a rescue operation signal transmission path
HERKEL PETER11 citations78
US9376289B2Jun 28, 2016
Elevator control system with sleep monitor
HERKEL PETER6 citations65
US9908743B2Mar 6, 2018
Adaptive power control for elevator system using power profiles
HERKEL PETER1 citations51
US9158289B2Oct 13, 2015
Safety circuit
HERKEL PETER0 citations49