STEM, INC.

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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 15105
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 596
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 595
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 5442
 
  
 
G06Q DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES, NOT OTHERWISE PROVIDED FOR 4170
 
  
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 3156
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 399
 
  
 
G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES 183
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 193
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 1153

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0331,290 INCREASING THE DEMAND REDUCTION EFFECTIVENESS OF AN ENERGY STORAGE SYSTEMJun 30, 16Nov 16, 17[H02J, G05B]
2017/0192,490 MULTIPHASE ELECTRICAL POWER CONSTRUCTION AND ASSIGNMENT AT MINIMAL LOSSMar 20, 17Jul 06, 17[G06F]
2016/0342,170 METHOD AND APPARATUS FOR DELIVERING POWER USING EXTERNAL DATAAug 02, 16Nov 24, 16[H02J, G06Q, G05B, G05F]
2015/0123,601 BIDIRECTIONAL ENERGY CONVERTER WITH CONTROLLABLE FILTER STAGEJan 06, 15May 07, 15[H02J]
2014/0088,781 SYSTEM FOR OPTIMIZING THE CHARGING OF ELECTRIC VEHICLES USING NETWORKED DISTRIBUTED ENERGY STORAGE SYSTEMSSep 26, 13Mar 27, 14[H02J]
2014/0070,617 METHOD AND APPARATUS FOR STABALIZING POWER ON AN ELECTRICAL GRID USING NETWORKED DISTRIBUTED ENERGY STORAGE SYSTEMSOct 31, 13Mar 13, 14[H02J]
2014/0067,151 METHOD AND APPARATUS FOR AUTOMATICALLY RECONFIGURING MULTI-PHASED NETWORKED ENERGY STORAGE DEVICES AT A SITEAug 29, 13Mar 06, 14[G05F]
2014/0058,577 METHOD AND APPARATUS FOR BALANCING POWER ON A PER PHASE BASIS IN MULTI-PHASE ELECTRICAL LOAD FACILITIES USING AN ENERGY STORAGE SYSTEMAug 27, 13Feb 27, 14[G05F]
2013/0207,591 HIGH SPEED FEEDBACK ADJUSTMENT OF POWER CHARGE/DISCHARGE FROM AN ENERGY STORAGE SYSTEMDec 28, 12Aug 15, 13[H02J]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9634508 Method for balancing frequency instability on an electric grid using networked distributed energy storage systemsSep 13, 13Apr 25, 17[H02J]
9600046 Multiphase electrical power construction and assignment at minimal lossJul 07, 14Mar 21, 17[H02J, G05B, G06F, G05F]
9418392 Method and apparatus for delivering power using external dataAug 23, 13Aug 16, 16[H02J, G06Q, G06F]
9406094 Method and apparatus for delivering power using external dataAug 14, 13Aug 02, 16[H02J, G06Q]
9136712 High speed feedback adjustment of power charge/discharge from energy storage systemFeb 03, 14Sep 15, 15[H02J]
8971057 Bidirectional energy converter with controllable filter stageMar 24, 10Mar 03, 15[H02M]
8922192 Multiphase electrical power phase identificationDec 30, 11Dec 30, 14[H02J, G01R]
8880233 Method and apparatus for delivering power using external dataApr 30, 14Nov 04, 14[H02J, G06Q, G06F]
8803570 Multiphase electrical power assignment at minimal lossDec 29, 11Aug 12, 14[H03L]
8774977 Multiphase electrical power construction and assignment at minimal lossDec 29, 11Jul 08, 14[H02J, G05D, G01R, G05F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0005,195 Distributed energy storage for reducing power demandAbandonedJan 10, 06Jan 04, 07[H02J]
2004/0262,996 Phase conversion device with built-in demand reduction / power boosting.AbandonedJun 28, 04Dec 30, 04[H02H]

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