York International Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 3734
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 1077
 
  
 
F25D REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS 838
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 656
 
  
 
F24F AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 441
 
  
 
2303 HEATING EQUIPMENT313
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 263
 
  
 
F16M FRAMES, CASINGS, OR BEDS, OF ENGINES OR OTHER MACHINES OR APPARATUS, NOT SPECIFIC TO AN ENGINE, MACHINE, OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS OR SUPPORTS233
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 250
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 299

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8011197 Apparatus to sense and control compressor operation in an HVAC systemJul 10, 09Sep 06, 11[F25B]
7918099 Medium voltage starter for a chiller unitFeb 29, 08Apr 05, 11[F25B]
7908881 HVAC system with powered subcoolerMar 14, 06Mar 22, 11[F25D]
7895852 System and method for controlling an economizer circuitApr 07, 08Mar 01, 11[F25B]
7849698 Method and apparatus to sense and establish operation mode for an HVAC controlJan 23, 06Dec 14, 10[F25B]
7849710 Falling film evaporatorOct 12, 05Dec 14, 10[F25B]
7845185 Method and apparatus for dehumidificationJun 23, 05Dec 07, 10[F25B]
7784295 Two-zone fuzzy logic liquid level controlOct 12, 09Aug 31, 10[F25B]
7770411 System and method for using hot gas reheat for humidity controlOct 08, 08Aug 10, 10[F25B]
7743617 Chiller sound reduction control system and methodApr 12, 05Jun 29, 10[F25B, F25D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8109104 System and method for detecting decreased performance in a refrigeration systemExpiredAug 25, 04Feb 07, 12[G01K]
2011/0167,846 METHOD AND SYSTEM FOR DEHUMIDIFICATION AND REFRIGERANT PRESSURE CONTROLAbandonedJan 14, 11Jul 14, 11[F25B, F25D, F24F]
7678434 Thermally-enhanced HVAC constructionsExpiredApr 30, 04Mar 16, 10[E04B, B32B]
7621141 Two-zone fuzzy logic liquid level controlExpiredSep 21, 05Nov 24, 09[F25B]
7619906 System for precharging a DC link in a variable speed driveExpiredDec 30, 05Nov 17, 09[H02J]
7555912 System for precharging a DC link in a variable speed driveExpiredMar 07, 05Jul 07, 09[H02P]
2009/0099,668 HTML DRIVEN EMBEDDED CONTROLLERAbandonedOct 20, 08Apr 16, 09[H04L, G05B, G06F]
7481619 Extended venturi fan ringExpiredAug 11, 05Jan 27, 09[F04D]
7439702 Application of a switched reluctance motion control system in a chiller systemExpiredNov 15, 05Oct 21, 08[H02P]
7434089 System and method for loading software into a control panel for a chiller systemExpiredAug 12, 04Oct 07, 08[G06F]
7421853 Enhanced manual start/stop sequencing controls for a stream turbine powered chiller unitExpiredDec 17, 04Sep 09, 08[F25B]
7421854 Automatic start/stop sequencing controls for a steam turbine powered chiller unitExpiredDec 17, 04Sep 09, 08[F25B]
7424345 Automated part procurement and service dispatchExpiredOct 15, 07Sep 09, 08[G01M]
7387498 System and method for noise attenuation of screw compressorsExpiredDec 04, 03Jun 17, 08[F04B]
7337630 Compact evaporator for chiller applicationExpiredNov 10, 05Mar 04, 08[F25B]
7338400 Motor belt tensioning construction for an air handling unitExpiredAug 12, 04Mar 04, 08[F16H]
7334377 Raceway construction for an air handing unitExpiredAug 12, 04Feb 26, 08[E04B]
7328587 Integrated adaptive capacity control for a steam turbine powered chiller unitExpiredDec 17, 04Feb 12, 08[F25B]
2008/0010,829 DIRECT EXPANSION COOLER HIGH VELOCITY DISHED HEADAbandonedJul 23, 07Jan 17, 08[B21D]
7299111 Method of clearing an HVAC control fault code memoryExpiredFeb 04, 05Nov 20, 07[G01M]

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