| Patent | Date |
|---|
Pulse width modulation interleaving
Grant 11,404,954 - Zhang , et al. August 2, 2 | 2022-08-02 |
Power module and converter with asymmetrical semiconductor rating arrangement
Grant 11,404,972 - She , et al. August 2, 2 | 2022-08-02 |
Variable frequency drive thermal management
Grant 11,398,794 - Agirman , et al. July 26, 2 | 2022-07-26 |
Single Stage, Two Level Pulse Width Modulation Strategies For Active Harmonic Filters
App 20210367503 - Agirman; Ismail | 2021-11-25 |
Hybrid Cooling For Power Electronics Unit
App 20210352826 - She; Xu ; et al. | 2021-11-11 |
Voltage Conversion System For Transport Refrigeration System
App 20210331560 - She; Xu ; et al. | 2021-10-28 |
Variable Frequency Drive Thermal Management
App 20210234497 - Agirman; Ismail ; et al. | 2021-07-29 |
Automatic rescue and charging system for elevator drive
Grant 11,053,096 - Agirman July 6, 2 | 2021-07-06 |
Power Module And Converter With Asymmetrical Semiconductor Rating Arrangement
App 20210159807 - She; Xu ; et al. | 2021-05-27 |
Power control system for a battery driven elevator
Grant 11,014,786 - Agirman , et al. May 25, 2 | 2021-05-25 |
Intelligent Charging Connector For Transport Refrigeration System
App 20210129702 - She; Xu ; et al. | 2021-05-06 |
Time Sharing Control Of Transport Refrigeration System
App 20210129630 - Shin; Jaegue ; et al. | 2021-05-06 |
Paralleled passive front-end rectifiers with and without interleaving
Grant 10,944,335 - Agirman March 9, 2 | 2021-03-09 |
Method of controlling paralleled passive front-end rectifiers with and without inter-leaving
Grant 10,833,603 - Agirman November 10, 2 | 2020-11-10 |
Adjustment Of Drop Rate Of Elevator Car With Electromagnetic Brake System
App 20200339382 - Millett; Steven M. ; et al. | 2020-10-29 |
Electromagnetic brake system for an elevator with variable rate of engagement
Grant 10,745,239 - Millet , et al. A | 2020-08-18 |
Pulse Width Modulation Interleaving
App 20200251980 - Kind Code | 2020-08-06 |
Multilevel drive half DC bus power supplies
Grant 10,734,925 - Millett , et al. | 2020-08-04 |
Conveyance system having paralleled drives
Grant 10,654,682 - Agirman , et al. | 2020-05-19 |
Decentralized Power Management In An Elevator System
App 20200122962 - Valdivia Guerrero; Virgilio ; et al. | 2020-04-23 |
Power Management In An Elevator System
App 20200122960 - Valdivia Guerrero; Virgilio ; et al. | 2020-04-23 |
Method Of Controling Paralleled Passive Front-end Rectifiers With And Without Inter-leaving
App 20190393801 - Agirman; Ismail | 2019-12-26 |
PWM strategy for regenerative multilevel drive
Grant 10,513,413 - Agirman , et al. Dec | 2019-12-24 |
Paralleled Passive Front-end Rectifiers With And Without Interleaving
App 20190379297 - Agirman; Ismail | 2019-12-12 |
Interposition inductor arrangement for multiple drives in parallel
Grant 10,454,387 - Agirman , et al. Oc | 2019-10-22 |
Converter pulse width modulation strategies for three phase regenerative drives
Grant 10,381,968 - Agirman A | 2019-08-13 |
Elevator system having battery and energy storage device
Grant 10,343,872 - Agirman , et al. July 9, 2 | 2019-07-09 |
Converter Pulse Width Modulation Strategies For Three Phase Regenerative Drives
App 20190173410 - Agirman; Ismail | 2019-06-06 |
Elevator drive control to protect drive components from moisture
Grant 10,287,131 - Nagarajan , et al. | 2019-05-14 |
Single Phase Operation Of Three Phase Regenerative Drives
App 20190131882 - Agirman; Ismail | 2019-05-02 |
Elevator load weighing system
Grant 10,273,119 - Hubbard , et al. | 2019-04-30 |
Bus capacitor bank configuration for a regenerative drive
Grant 10,246,294 - Agirman , et al. | 2019-04-02 |
Control strategies for multilevel line regenerative drive
Grant 10,221,038 - Agirman , et al. | 2019-03-05 |
Automatic Rescue And Charging System For Elevator Drive
App 20190062111 - Agirman; Ismail | 2019-02-28 |
Hybrid direct current link system for a regenerative drive
Grant 10,218,262 - Agirman Feb | 2019-02-26 |
Elevator Drive Control To Protect Drive Components From Moisture
App 20180346285 - NAGARAJAN; Prasanna ; et al. | 2018-12-06 |
Active damping of a hovering elevator car based on vertical oscillation of the hovering elevator car
Grant 10,099,894 - Roberts , et al. October 16, 2 | 2018-10-16 |
Interposition Inductor Arrangement For Multiple Drives In Parallel
App 20180248494 - Agirman; Ismail ; et al. | 2018-08-30 |
Elevator car speed control in a battery powered elevator system
Grant 10,059,563 - Agirman August 28, 2 | 2018-08-28 |
Power Control System For A Battery Driven Elevator
App 20180237268 - Agirman; Ismail ; et al. | 2018-08-23 |
Bus capacitor bank configuration for a multi-level regenerative drive
Grant 10,008,917 - Agirman , et al. June 26, 2 | 2018-06-26 |
Elevator speed control
Grant 9,957,131 - Agirman , et al. May 1, 2 | 2018-05-01 |
Parallel interleaved 2-level or 3-level regenerative drives
Grant 9,906,183 - Agirman February 27, 2 | 2018-02-27 |
Conveyance System Having Paralleled Drives
App 20170369276 - Agirman; Ismail ; et al. | 2017-12-28 |
Electromagnetic Brake System
App 20170362051 - Millet; Steven M. ; et al. | 2017-12-21 |
Battery mounting in elevator hoistway
Grant 9,815,665 - Rogers , et al. November 14, 2 | 2017-11-14 |
Three-level T-type Npc Power Converter
App 20170317607 - Agirman; Ismail ; et al. | 2017-11-02 |
Elevator Load Weighing System
App 20170313552 - Hubbard; James L. ; et al. | 2017-11-02 |
Neutral Point Regulator Hardware For A Multi-level Drive
App 20170288574 - Agirman; Ismail ; et al. | 2017-10-05 |
Elevator braking in a battery powered elevator system
Grant 9,586,789 - Agirman , et al. March 7, 2 | 2017-03-07 |
Bus Capacitor Bank Configuration For A Regenerative Drive
App 20170029242 - Agirman; Ismail ; et al. | 2017-02-02 |
Bus Capacitor Bank Configuration For A Multi-level Regenerative Drive
App 20170005562 - Agirman; Ismail ; et al. | 2017-01-05 |
Drive Assisted Emergency Stop
App 20160362276 - Wang; Yang ; et al. | 2016-12-15 |
Position feedback for elevator system
Grant 9,511,976 - Kang , et al. December 6, 2 | 2016-12-06 |
Paralleled Active Front-end Rectifiers With Negligible Common-mode
App 20160352249 - AGIRMAN; ISMAIL ; et al. | 2016-12-01 |
Control Strategies For Multilevel Line Regenerative Drive
App 20160311645 - Agirman; Ismail ; et al. | 2016-10-27 |
Pwm Strategy For Regenerative Multilevel Drive
App 20160311644 - Agirman; Ismail ; et al. | 2016-10-27 |
Multilevel Drive Half Dc Bus Power Supplies
App 20160308474 - Millett; Steven M. ; et al. | 2016-10-20 |
Elevator Braking In A Battery Powered Elevator System
App 20160194179 - Agirman; Ismail ; et al. | 2016-07-07 |
Hybrid Energy Sourced Battery Or Super-capacitor Fed Drive Topologies
App 20160083220 - Agirman; Ismail ; et al. | 2016-03-24 |
Active Damping Of Vertical Oscillation Of A Hovering Elevator Car
App 20160023864 - Roberts; Randall K. ; et al. | 2016-01-28 |
Elevator Car Speed Control In A Battery Powered Elevator System
App 20150375959 - Agirman; Ismail | 2015-12-31 |
Elevator Speed Control
App 20150329317 - Agirman; Ismail ; et al. | 2015-11-19 |
Battery Mounting In Elevator Hoistway
App 20150083526 - Rogers; Kyle W. ; et al. | 2015-03-26 |
System and method for operating a motor during normal and power failure conditions
Grant 8,789,659 - Agirman , et al. July 29, 2 | 2014-07-29 |
Optics Based Sensor Device
App 20140014441 - Kang; Keunmo ; et al. | 2014-01-16 |
Operation of a three-phase regenerative drive from mixed DC and single phase AC power sources
Grant 8,629,637 - Blasko , et al. January 14, 2 | 2014-01-14 |
Regenerative Drive With Backup Power Supply
App 20120261217 - Agirman; Ismail ; et al. | 2012-10-18 |
Elevator regenerative drive with automatic rescue operation
Grant 8,230,978 - Agirman , et al. July 31, 2 | 2012-07-31 |
Elevator motor drive tolerant of an irregular power source
Grant 8,127,894 - Agirman , et al. March 6, 2 | 2012-03-06 |
Operaton Of A Three-phase Regenerative Drive From Mixed Dc And Single Phase Ac Power Sources
App 20110247900 - Blasko; Vladimir ; et al. | 2011-10-13 |
Managing an encoder malfunction in an elevator drive system
Grant 8,006,808 - Piedra , et al. August 30, 2 | 2011-08-30 |
Automatic Rescue Operation For A Regenerative Drive System
App 20100044160 - Agirman; Ismail ; et al. | 2010-02-25 |
Elevator Motor Drive Tolerant of an Irregular Power Source
App 20090301819 - Agirman; Ismail ; et al. | 2009-12-10 |
Operating a three phase device using single phase power
Grant 7,609,534 - Agirman , et al. October 27, 2 | 2009-10-27 |
Managing an Encoder Malfunction in an Elevator Drive System
App 20090000877 - Izard; Jeffrey M. ; et al. | 2009-01-01 |
Operating a Three Phase Device Using Single Phase Power
App 20070253231 - Agirman; Ismail ; et al. | 2007-11-01 |
Method and apparatus for encoderless operation of a permanent magnet synchronous motor in an elevator
Grant 6,492,788 - Agirman , et al. December 10, 2 | 2002-12-10 |
Determining phase of AC mains in PWM controlled converters without voltage sensors
Grant 6,459,599 - Agirman , et al. October 1, 2 | 2002-10-01 |
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