LIEBERT CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 3478
 
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 28118
 
 
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 2442
 
 
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 2228
 
 
 
F25D REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS 1824
 
 
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 1169
 
 
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 1033
 
 
 
G06F ELECTRIC DIGITAL DATA PROCESSING 10419
 
 
 
F24F AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 934
 
 
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 867

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0227,259 Hybrid Air Handler Cooling Unit With Bi-Modal Heat ExchangerJan 11, 17Aug 10, 17[F24F, F25B]
2017/0198,935 System And Method For Rapid Input And Configuration Of Sensors For A HVAC Monitoring SystemDec 18, 15Jul 13, 17[G05B, G06F, F24F]
2017/0118,874 Cooling Systems For Small Equipment Rooms And Methods Of Cooling Small Equipment RoomsOct 19, 16Apr 27, 17[H05K]
2017/0023,279 Pumped Refrigerant Cooling System With 1+1 To N+1 And Built-In RedundancyOct 07, 16Jan 26, 17[B23P, F25B]
2017/0013,745 SYSTEM AND METHOD FOR MODULAR DATA CENTERSep 23, 16Jan 12, 17[H05K, E04H]
2016/0363,359 Cooling System With Direct Expansion And Pumped Refrigerant Economization CoolingJun 08, 16Dec 15, 16[F25B]
2016/0359,362 Fast Restart Of Flywheel In Uninterruptible Power Supply System Having Flywheel System/Battery CombinationApr 29, 16Dec 08, 16[H02J]
2016/0336,796 SYSTEM AND METHOD FOR POWER SHARING IN A MULTIPLE UPS SYSTEMMay 10, 16Nov 17, 16[H02J]
2016/0327,342 MICROCHANNEL HEAT EXCHANGER WITH IMPROVEMENT OF DIRT-RESISTING AND ANTI-BLOCKINGDec 29, 14Nov 10, 16[F28D, F28F, F24F]
2016/0315,465 INTELLIGENT POWER STRIP WITH MANAGEMENT OF BISTABLE RELAYS TO REDUCE CURRENT IN-RUSHApr 11, 16Oct 27, 16[H01R, H02H, H05K, H02J]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9719803 Mesh network synchronous power monitoring systems and methodsMar 05, 14Aug 01, 17[G01R, G01D, H04Q, G08C]
9706685 Cooling system for high density heat loadsDec 21, 12Jul 11, 17[F25B, H05K]
9572288 System and method for modular data centerOct 01, 14Feb 14, 17[H05K, E04H]
9545706 Tool suspension deviceJan 24, 16Jan 17, 17[B25B, B25H, B65D]
9548520 Ultrasonic electrolyte sensorMay 08, 13Jan 17, 17[G01F, H01M]
9531288 Systems and methods for balancing UPS output voltages during transitions between operating modesNov 13, 13Dec 27, 16[H02M, H02J]
9519560 Method for automatic mapping of AC phase conductors and identification of AC buses in a multi-bus power systemJan 27, 14Dec 13, 16[G06F]
9520874 Operating a static transfer switch to eliminate transformer inrush current in the presence of residual fluxOct 17, 13Dec 13, 16[H01H, H03K, H02J]
9494371 Pumped refrigerant cooling system with 1+1 to N+1 and built-in redundancyDec 21, 12Nov 15, 16[B23P, F28D, F28F, F25B, H05K]
9476624 Scroll compressor differential pressure control during compressor shutdown transitionsJan 31, 14Oct 25, 16[F04C, F25D, F25B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0138,840 COOLING SYSTEM FOR HIGH DENSITY HEAT LOADABANJan 22, 16May 19, 16[F25D, F25B]
2016/0094,209 METHOD AND CIRCUIT FOR ELIMINATING TRANSFORMER SATURATION IN THE PRESENCE OF DC OFFSET VOLTAGEABANSep 11, 15Mar 31, 16[H03K]
2016/0061,495 Vapor Compression Cooling System With Improved Energy Efficiency Through EconomizationABANOct 09, 15Mar 03, 16[F25B]
2014/0163,744 FAULT DETECTION IN A COOLING SYSTEM WITH A PLURALITY OF IDENTICAL COOLING CIRCUITSABANDec 02, 13Jun 12, 14[F24F]
2014/0137,573 Expansion Valve Position Control Systems And MethodsABANNov 13, 13May 22, 14[F25B]
2014/0139,299 EMI Filter Assemblies For Busbars Of An UPSABANNov 13, 13May 22, 14[H03H]
2013/0139,529 Fan Speed Control For Air-Cooled Condenser In Precision CoolingABANJun 07, 12Jun 06, 13[F25D]
2013/0098,086 VAPOR COMPRESSION COOLING SYSTEM WITH IMPROVED ENERGY EFFICIENCY THROUGH ECONOMIZATIONABANApr 13, 12Apr 25, 13[F25B]
2013/0091,874 Variable Refrigerant Flow Cooling SystemABANApr 03, 12Apr 18, 13[F25B]
2013/0021,037 WIRELESS PORTABLE BATTERY CAPACITY TEST SYSTEMABANJan 20, 12Jan 24, 13[G01R]
2012/0291,984 Kind Of Air Conditioner System And Control Method Of Its Condensing FanABANNov 14, 11Nov 22, 12[F28F, G05D]
2012/0174,612 Computer Room Air Conditioner With Pre-CoolerABANMay 13, 11Jul 12, 12[F28D, F25D]
2012/0078,550 System And Method For Displaying Battery String Cell Data In Polar Coordinate Graphical FormABANMar 25, 11Mar 29, 12[G01R, G06T]
8063671 Driving circuit of switch deviceExpiredJun 13, 08Nov 22, 11[H03B]
2011/0279,124 FLOAT CURRENT MONITORABANMay 12, 11Nov 17, 11[G01R]
2011/0241,430 METHOD FOR CONTROLLING SYSTEM GAIN OF UPSABANApr 05, 11Oct 06, 11[H02J]
2011/0195,922 Beta-L-2'-Deoxy-Nucleosides for the Treatment of Hepatitis BABANDec 08, 09Aug 11, 11[C07H, A61P, A61K]
2011/0101,118 CONDENSATION PREVENTION SYSTEM AND METHODS OF USEABANJan 06, 11May 05, 11[F24F]
2010/0296,319 POWER SOURCE MODULE WITH BROAD INPUT VOLTAGE RANGEABANSep 08, 08Nov 25, 10[H02M]
2010/0204,838 ENERGY EFFICIENT AIR CONDITIONING SYSTEM AND METHOD UTILIZING VARIABLE CAPACITY COMPRESSOR AND SENSIBLE HEAT RATIO LOAD MATCHINGABANFeb 11, 10Aug 12, 10[G05B, F28D, F25B, F01C]

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