Princeton Power Systems, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 299
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 298
 
  
 
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 2100
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 285
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 164

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0242,450 ENERGY MANAGEMENT SYSTEMOct 16, 15Aug 24, 17[G05B, G05F]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9614461 Bidirectional high frequency variable speed drive for CHP (combined heating and power) and flywheel applicationsDec 02, 14Apr 04, 17[H02M, H02P, F01D]
9391538 Switched power converterSep 21, 11Jul 12, 16[H02M]
8779711 Induction motor driverApr 20, 11Jul 15, 14[H02P]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7659700 Charge-transfer apparatus and methodExpiredJun 11, 08Feb 09, 10[H02M, G05F]
7402983 Method for use of charge-transfer apparatusExpiredFeb 06, 06Jul 22, 08[G05F]

Top Inventors for This Owner

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