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 3684
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 32124
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 2742
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 2330
 
  
 
F25D REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS 2026
 
  
 
F24F AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 1233
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 11436
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 1166
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 1035
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 9150

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2016/0359,362 Fast Restart Of Flywheel In Uninterruptible Power Supply System Having Flywheel System/Battery CombinationApr 29, 16Dec 08, 16[H02J]
2016/0327,342 MICROCHANNEL HEAT EXCHANGER WITH IMPROVEMENT OF DIRT-RESISTING AND ANTI-BLOCKINGDec 29, 14Nov 10, 16[F28D, F28F, F24F]
2016/0138,260 System And Method For Modular Data CenterJan 21, 16May 19, 16[E04B]
2016/0109,526 SYSTEM AND METHOD FOR UPS BATTERY MONITORING AND DATA ANALYSISMay 05, 14Apr 21, 16[H02J, G05B, G01R]
2015/0216,087 METHOD OF RETROFITTING COMPUTER ROOM AIR CONDITIONER TO INCREASE A MAXIMUM TEMPERATURE DELTAApr 13, 15Jul 30, 15[H05K]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9915687 Real current meterMar 21, 16Mar 13, 18[G01R]
9876390 Techniques for improving operation of static transfer switches during voltage disturbancesOct 16, 13Jan 23, 18[H02J]
9850655 System and method for modular data centerJan 21, 16Dec 26, 17[E04B, H05K, E04H]
9845981 Load estimator for control of vapor compression cooling system with pumped refrigerant economizationOct 04, 13Dec 19, 17[F25B, H05K]
9843188 Method to select optimal synchronization source in a multiple uninterruptible power supply systemOct 31, 14Dec 12, 17[H02J]
9829233 Scroll compressor differential pressure control during compressor startup transitionsJan 31, 14Nov 28, 17[F04B, F25B, F04C]
9772126 Cooling system for high density heat loadJan 22, 16Sep 26, 17[F25B, F25D]
9746224 Expansion valve setpoint control systems and methodsNov 13, 13Aug 29, 17[F25B]
9719803 Mesh network synchronous power monitoring systems and methodsMar 05, 14Aug 01, 17[H04Q, G08C, G01R, G01D]
9706685 Cooling system for high density heat loadsDec 21, 12Jul 11, 17[F25B, H05K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0359,265 Apparatus for Retaining a Plug in a ReceptacleAbandonedAug 23, 16Dec 08, 16[H01R]
2016/0094,209 METHOD AND CIRCUIT FOR ELIMINATING TRANSFORMER SATURATION IN THE PRESENCE OF DC OFFSET VOLTAGEAbandonedSep 11, 15Mar 31, 16[H03K]
2016/0061,495 Vapor Compression Cooling System With Improved Energy Efficiency Through EconomizationAbandonedOct 09, 15Mar 03, 16[F25B]
2014/0163,744 FAULT DETECTION IN A COOLING SYSTEM WITH A PLURALITY OF IDENTICAL COOLING CIRCUITSAbandonedDec 02, 13Jun 12, 14[F24F]
2014/0137,573 Expansion Valve Position Control Systems And MethodsAbandonedNov 13, 13May 22, 14[F25B]
2014/0139,299 EMI Filter Assemblies For Busbars Of An UPSAbandonedNov 13, 13May 22, 14[H03H]
2013/0139,529 Fan Speed Control For Air-Cooled Condenser In Precision CoolingAbandonedJun 07, 12Jun 06, 13[F25D]
2013/0098,086 VAPOR COMPRESSION COOLING SYSTEM WITH IMPROVED ENERGY EFFICIENCY THROUGH ECONOMIZATIONAbandonedApr 13, 12Apr 25, 13[F25B]
2013/0091,874 Variable Refrigerant Flow Cooling SystemAbandonedApr 03, 12Apr 18, 13[F25B]
2013/0021,037 WIRELESS PORTABLE BATTERY CAPACITY TEST SYSTEMAbandonedJan 20, 12Jan 24, 13[G01R]
2012/0291,984 Kind Of Air Conditioner System And Control Method Of Its Condensing FanAbandonedNov 14, 11Nov 22, 12[G05D, F28F]
2012/0174,612 Computer Room Air Conditioner With Pre-CoolerAbandonedMay 13, 11Jul 12, 12[F28D, F25D]
2012/0078,550 System And Method For Displaying Battery String Cell Data In Polar Coordinate Graphical FormAbandonedMar 25, 11Mar 29, 12[G06T, G01R]
8063671 Driving circuit of switch deviceExpiredJun 13, 08Nov 22, 11[H03B]
2011/0279,124 FLOAT CURRENT MONITORAbandonedMay 12, 11Nov 17, 11[G01R]
2011/0241,430 METHOD FOR CONTROLLING SYSTEM GAIN OF UPSAbandonedApr 05, 11Oct 06, 11[H02J]
2011/0195,922 Beta-L-2'-Deoxy-Nucleosides for the Treatment of Hepatitis BAbandonedDec 08, 09Aug 11, 11[A61K, C07H, A61P]
2011/0101,118 CONDENSATION PREVENTION SYSTEM AND METHODS OF USEAbandonedJan 06, 11May 05, 11[F24F]
2010/0296,319 POWER SOURCE MODULE WITH BROAD INPUT VOLTAGE RANGEAbandonedSep 08, 08Nov 25, 10[H02M]
2010/0204,838 ENERGY EFFICIENT AIR CONDITIONING SYSTEM AND METHOD UTILIZING VARIABLE CAPACITY COMPRESSOR AND SENSIBLE HEAT RATIO LOAD MATCHINGAbandonedFeb 11, 10Aug 12, 10[G05B, F28D, F25B, F01C]

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