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Edward Piedra
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Chicopee, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Health monitoring systems and methods for elevator systems
Patent number
11,548,758
Issue date
Jan 10, 2023
Otis Elevator Company
Randy Roberts
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Dynamic compensation control for elevator systems
Patent number
11,235,948
Issue date
Feb 1, 2022
Otis Elevator Company
Edward Piedra
G05 - CONTROLLING REGULATING
Information
Patent Grant
Elevator system including a permanent magnet (PM) synchronous motor...
Patent number
11,078,049
Issue date
Aug 3, 2021
Otis Elevator Company
Edward D. Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Rescue control and method of operating an elevator system including...
Patent number
11,014,778
Issue date
May 25, 2021
Otis Elevator Company
Edward D. Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator run profile modification for smooth rescue
Patent number
10,822,197
Issue date
Nov 3, 2020
Otis Elevator Company
Edward Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Brake operation management in elevators
Patent number
10,538,412
Issue date
Jan 21, 2020
Otis Elevator Company
Amir Lotfi
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
System and method of maintaining performance of a system
Patent number
10,513,414
Issue date
Dec 24, 2019
Otis Elevator Company
Yang Wang
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Brake operation management in elevators
Patent number
10,252,879
Issue date
Apr 9, 2019
Otis Elevator Company
Amir Lotfi
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator speed control
Patent number
9,957,131
Issue date
May 1, 2018
Otis Elevator Company
Ismail Agirman
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator run profile modification for smooth rescue
Patent number
9,862,568
Issue date
Jan 9, 2018
Otis Elevator Company
Edward Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Advanced smooth rescue operation
Patent number
9,809,418
Issue date
Nov 7, 2017
Otis Elevator Company
Prasanna Nagarajan
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator motor drive tolerant of an irregular power source
Patent number
8,127,894
Issue date
Mar 6, 2012
Otis Elevator Company
Ismail Agirman
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Elevator drive control strategy
Patent number
8,104,584
Issue date
Jan 31, 2012
Otis Elevator Company
Edward Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Managing an encoder malfunction in an elevator drive system
Patent number
8,006,808
Issue date
Aug 30, 2011
Otis Elevator Company
Edward D. Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Motor drive parameters
Patent number
6,483,271
Issue date
Nov 19, 2002
Otis Elevator Company
Ronnie E. Thebeau
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Determining phase of AC mains in PWM controlled converters without...
Patent number
6,459,599
Issue date
Oct 1, 2002
Otis Elevator Company
Ismail Agirman
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
BEAM CLIMBER ACTIVE BRAKE HEALTH MONITORING SYSTEM
Publication number
20220033219
Publication date
Feb 3, 2022
Otis Elevator Company
Randy Roberts
B66 - HOISTING LIFTING HAULING
Information
Patent Application
BEAM CLIMBER FRICTION MONITORING SYSTEM
Publication number
20220033218
Publication date
Feb 3, 2022
Otis Elevator Company
Randy Roberts
B66 - HOISTING LIFTING HAULING
Information
Patent Application
BRAKE OPERATION MANAGEMENT IN ELEVATORS
Publication number
20190202658
Publication date
Jul 4, 2019
Otis Elevator Company
Amir Lotfi
B66 - HOISTING LIFTING HAULING
Information
Patent Application
HEALTH MONITORING SYSTEMS AND METHODS FOR ELEVATOR SYSTEMS
Publication number
20190002235
Publication date
Jan 3, 2019
Otis Elevator Company
Randy Roberts
B66 - HOISTING LIFTING HAULING
Information
Patent Application
DYNAMIC COMPENSATION CONTROL FOR ELEVATOR SYSTEMS
Publication number
20180273343
Publication date
Sep 27, 2018
Otis Elevator Company
Edward Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Application
SYSTEM AND METHOD OF MAINTAINING PERFORMANCE OF A SYSTEM
Publication number
20180257907
Publication date
Sep 13, 2018
Otis Elevator Company
Yang WANG
B66 - HOISTING LIFTING HAULING
Information
Patent Application
RESCUE CONTROL AND METHOD OF OPERATING AN ELEVATOR SYSTEM INCLUDING...
Publication number
20180244492
Publication date
Aug 30, 2018
Otis Elevator Company
Edward D. PIEDRA
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR SYSTEM INCLUDING A PERMANENT MAGNET (PM) SYNCHRONOUS MOTOR...
Publication number
20180222724
Publication date
Aug 9, 2018
Otis Elevator Company
Edward D. Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR RUN PROFILE MODIFICATION FOR SMOOTH RESCUE
Publication number
20180037437
Publication date
Feb 8, 2018
Otis Elevator Company
Edward Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ADVANCED SMOOTH RESCUE OPERATION
Publication number
20180016114
Publication date
Jan 18, 2018
Otis Elevator Company
Prasanna Nagarajan
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ADVANCED SMOOTH RESCUE OPERATION
Publication number
20170247222
Publication date
Aug 31, 2017
Otis Elevator Company
Prasanna Nagarajan
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR RUN PROFILE MODIFICATION FOR SMOOTH RESCUE
Publication number
20170247223
Publication date
Aug 31, 2017
Otis Elevator Company
Edward Piedra
B66 - HOISTING LIFTING HAULING
Information
Patent Application
BRAKE OPERATION MANAGEMENT IN ELEVATORS
Publication number
20170174472
Publication date
Jun 22, 2017
Otis Elevator Company
Amir Lotfi
B66 - HOISTING LIFTING HAULING
Information
Patent Application
ELEVATOR SPEED CONTROL
Publication number
20150329317
Publication date
Nov 19, 2015
Otis Elevator Company
Ismail Agirman
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Elevator Motor Drive Tolerant of an Irregular Power Source
Publication number
20090301819
Publication date
Dec 10, 2009
Otis Elevator Company
Ismail Agirman
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Managing an Encoder Malfunction in an Elevator Drive System
Publication number
20090000877
Publication date
Jan 1, 2009
Otis Elevator Company
Jeffrey M. Izard
B66 - HOISTING LIFTING HAULING
Information
Patent Application
Elevator Drive Control Strategy
Publication number
20080277209
Publication date
Nov 13, 2008
Edward Piedra
B66 - HOISTING LIFTING HAULING