Assignee
YORK INT CORP
US·175 granted patents·35 pending applications·6,343 citations·filing 1985–2011
Top patents by PatentIndex Score
210 records- 0198US7562536B2Method and apparatus to sense and control compressor operation in an HVAC systemYORK INT CORP·Filed 2006·Granted Jul 21, 2009·66 cites·9 claims
- 0297US7424345B2Automated part procurement and service dispatchYORK INT CORP·Filed 2007·Granted Sep 9, 2008·88 cites·10 claims
- 0396US7849698B2Method and apparatus to sense and establish operation mode for an HVAC controlYORK INT CORP·Filed 2006·Granted Dec 14, 2010·92 cites·17 claims
- 0496US7005829B2System for precharging a DC link in a variable speed driveYORK INT CORP·Filed 2005·Granted Feb 28, 2006·61 cites·1 claims
- 0595US7439702B2Application of a switched reluctance motion control system in a chiller systemYORK INT CORP·Filed 2005·Granted Oct 21, 2008·34 cites·20 claims
- 0695US5218283AAC motor drive system with a two phase power supplyYORK INT CORP·Filed 1992·Granted Jun 8, 1993·100 cites·26 claims
- 0794US7559207B2Method for refrigerant pressure control in refrigeration systemsYORK INT CORP·Filed 2005·Granted Jul 14, 2009·47 cites·22 claims
- 0894US7096681B2System and method for variable speed operation of a screw compressorYORK INT CORP·Filed 2004·Granted Aug 29, 2006·61 cites·35 claims
- 0994US7081734B1Ride-through method and system for HVACandR chillersYORK INT CORP·Filed 2005·Granted Jul 25, 2006·48 cites·33 claims
- 1094US6427464B1Hot gas bypass control for centrifugal chillersYORK INT CORP·Filed 2000·Granted Aug 6, 2002·77 cites·61 claims
- 1194US6330806B1System and method for controlling an HVAC system using a flash mini-cardYORK INT CORP·Filed 2000·Granted Dec 18, 2001·216 cites·42 claims
- 1294US5590830AControl system for air quality and temperature conditioning unit with high capacity filter bypassYORK INT CORP·Filed 1995·Granted Jan 7, 1997·188 cites·5 claims
- 1394US5252905ADriving system for single phase A-C induction motorYORK INT CORP·Filed 1987·Granted Oct 12, 1993·87 cites·13 claims
- 1494US4706180APulse width modulated inverter system for driving single phase a-c induction motorYORK INT CORP·Filed 1985·Granted Nov 10, 1987·76 cites·12 claims
- 1593US7849710B2Falling film evaporatorYORK INT CORP·Filed 2005·Granted Dec 14, 2010·23 cites·19 claims
- 1693US7181928B2System and method for cooling a compressor motorYORK INT CORP·Filed 2004·Granted Feb 27, 2007·65 cites·27 claims
- 1793US6491094B2Control for a heating ventilating and air conditioning unitYORK INT CORP·Filed 2001·Granted Dec 10, 2002·99 cites·17 claims
- 1893US5564626AControl system for air quality and temperature conditioning unit with high capacity filter bypassYORK INT CORP·Filed 1995·Granted Oct 15, 1996·146 cites·13 claims
- 1992US7908881B2HVAC system with powered subcoolerYORK INT CORP·Filed 2006·Granted Mar 22, 2011·21 cites·25 claims
- 2092US7295896B2Automated part procurement and service dispatchYORK INT CORP·Filed 2006·Granted Nov 13, 2007·33 cites·23 claims
- 2192US7085626B2Method and apparatus to prevent low temperature damage using an HVAC controlYORK INT CORP·Filed 2004·Granted Aug 1, 2006·73 cites·20 claims
- 2292US6459606B1Control system and method for four-quadrant switches in three-phase PWM AC voltage regulatorsYORK INT CORP·Filed 2001·Granted Oct 1, 2002·87 cites·11 claims
- 2392US6434003B1Liquid-cooled power semiconductor device heatsinkYORK INT CORP·Filed 2001·Granted Aug 13, 2002·117 cites·28 claims
- 2492US6386272B1Device and method for detecting fouling in a shell and tube heat exchangerYORK INT CORP·Filed 2000·Granted May 14, 2002·60 cites·32 claims
- 2592US5707005AControl system for air quality and temperature conditioning unit with high capacity filter bypassYORK INT CORP·Filed 1996·Granted Jan 13, 1998·133 cites·7 claims
- 2691US7099748B2HVAC start-up control system and methodYORK INT CORP·Filed 2004·Granted Aug 29, 2006·76 cites·16 claims
- 2791US7003971B2Electronic component cooling system for an air-cooled chillerYORK INT CORP·Filed 2004·Granted Feb 28, 2006·62 cites·18 claims
- 2891US6973797B2Capacity control for economizer refrigeration systemsYORK INT CORP·Filed 2004·Granted Dec 13, 2005·59 cites·20 claims
- 2991US6686718B2Control loop and method for variable speed drive ride-through capability improvementYORK INT CORP·Filed 2001·Granted Feb 3, 2004·72 cites·25 claims
- 3091US6488081B2Method for controlling a heating ventilating and air conditioning unitYORK INT CORP·Filed 2001·Granted Dec 3, 2002·71 cites·19 claims
- 3191US5976010AEnergy efficient air quality maintenance system and methodYORK INT CORP·Filed 1997·Granted Nov 2, 1999·108 cites·30 claims
- 3290US7743617B2Chiller sound reduction control system and methodYORK INT CORP·Filed 2005·Granted Jun 29, 2010·26 cites·23 claims
- 3390US7619906B2System for precharging a DC link in a variable speed driveYORK INT CORP·Filed 2005·Granted Nov 17, 2009·21 cites·22 claims
- 3490US6019677AModular integrated terminals and associated systems for heating and coolingYORK INT CORP·Filed 1997·Granted Feb 1, 2000·82 cites·70 claims
- 3589US7845185B2Method and apparatus for dehumidificationYORK INT CORP·Filed 2005·Granted Dec 7, 2010·34 cites·11 claims
- 3689US7770411B2System and method for using hot gas reheat for humidity controlYORK INT CORP·Filed 2008·Granted Aug 10, 2010·13 cites·14 claims
- 3789US7219505B2Control stability system for moist air dehumidification units and method of operationYORK INT CORP·Filed 2004·Granted May 22, 2007·51 cites·43 claims
- 3889US7202626B2Variable speed drive for a chiller system with a switched reluctance motorYORK INT CORP·Filed 2005·Granted Apr 10, 2007·25 cites·18 claims
- 3989US6250382B1Method and system for controlling a heating, ventilating, and air conditioning unitYORK INT CORP·Filed 1999·Granted Jun 26, 2001·75 cites·29 claims
- 4089US5746062AMethods and apparatuses for detecting surge in centrifugal compressorsYORK INT CORP·Filed 1996·Granted May 5, 1998·71 cites·18 claims
- 4188US7784295B2Two-zone fuzzy logic liquid level controlYORK INT CORP·Filed 2009·Granted Aug 31, 2010·17 cites·14 claims
- 4288US6976529B2High-V plate fin for a heat exchanger and method of manufacturingYORK INT CORP·Filed 2002·Granted Dec 20, 2005·33 cites·49 claims
- 4388US6872050B2Variable geometry diffuser mechanismYORK INT CORP·Filed 2002·Granted Mar 29, 2005·61 cites·37 claims
- 4488US6557371B1Apparatus and method for discharging fluidYORK INT CORP·Filed 2001·Granted May 6, 2003·44 cites·47 claims
- 4587US7621141B2Two-zone fuzzy logic liquid level controlYORK INT CORP·Filed 2005·Granted Nov 24, 2009·17 cites·11 claims
- 4687US7434415B2System and method for using hot gas reheat for humidity controlYORK INT CORP·Filed 2004·Granted Oct 14, 2008·36 cites·2 claims
- 4787US7353659B2System and method for controlling an economizer circuitYORK INT CORP·Filed 2005·Granted Apr 8, 2008·13 cites·30 claims
- 4887US7290600B2Air-to-air heat pump defrost bypass loopYORK INT CORP·Filed 2005·Granted Nov 6, 2007·17 cites·23 claims
- 4986US7661274B2System and method for capacity control in a multiple compressor chiller systemYORK INT CORP·Filed 2006·Granted Feb 16, 2010·20 cites·11 claims
- 5086US7555912B2System for precharging a DC link in a variable speed driveYORK INT CORP·Filed 2005·Granted Jul 7, 2009·23 cites·20 claims
Showing the top 50 of 210 patent records by PatentIndex Score.
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