CAPSTONE TURBINE CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F02C GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS 2934
 
  
 
H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, GENERATORS, OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS 2859
 
  
 
F01D NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES 1649
 
  
 
H02K DYNAMO-ELECTRIC MACHINES 1196
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 1060
 
  
 
F02N STARTING OF COMBUSTION ENGINES 726
 
  
 
F23R GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS 623
 
  
 
H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY 5115
 
  
 
F02G HOT-GAS OR COMBUSTION- PRODUCT POSITIVE-DISPLaCEMENT ENGINE PLANTS 419
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 359

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9366432 Multistaged lean prevaporizing premixing fuel injectorMay 17, 12Jun 14, 16[F23L, F23R, F23D]
7614792 Compliant foil fluid film radial bearing or sealApr 26, 07Nov 10, 09[F16C]
RE40713 Turbogenerator/motor controllerMay 11, 01May 19, 09[H02P]
7415764 Recuperator assembly and proceduresJan 20, 06Aug 26, 08[B21D]
7147050 Recuperator construction for a gas turbine engineAug 12, 04Dec 12, 06[F28F]
7112036 Rotor and bearing system for a turbomachineJun 04, 04Sep 26, 06[F01D]
RE39190 Compliant foil fluid film radial bearingJun 29, 01Jul 18, 06[F16C]
7065873 Recuperator assembly and proceduresAug 12, 04Jun 27, 06[B23P]
7053590 Power generating system including a high-frequency alternator, a rectifier module, and an auxiliary power supplyAug 24, 04May 30, 06[H02P]
6998728 Method and apparatus for controlling output current of turbine/alternator on common shaftOct 03, 03Feb 14, 06[H02P]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0197,705 System including a microturbine and a high-frequency alternator generating backup power for a telecommunications systemAbandonedFeb 20, 07Aug 21, 08[H02J]
7092262 System and method for pre-charging the DC bus of a utility connected power converterExpiredMar 31, 04Aug 15, 06[H02H]
6863509 Split seal plate with integral brush sealExpiredJan 13, 03Mar 08, 05[F04B]
6845558 Method of fabricating vanesExpiredAug 27, 03Jan 25, 05[B23P, F01D]
6845621 Annular combustor for use with an energy systemExpiredOct 31, 02Jan 25, 05[F23R]
6810677 Method for gas turbine light-offExpiredAug 27, 02Nov 02, 04[F02C]
2004/0160,061 Gas-turbine engine with catalytic reactorAbandonedJan 31, 03Aug 19, 04[H02P]
2004/0148,942 Method for catalytic combustion in a gas- turbine engine, and applications thereofAbandonedJan 31, 03Aug 05, 04[F23R]
2004/0119,291 Method and apparatus for indirect catalytic combustor preheatingAbandonedDec 04, 03Jun 24, 04[H02P]
2004/0103,669 Integrated turbine power generation system with catalytic reactorAbandonedNov 13, 03Jun 03, 04[F23R]
2004/0080,165 Turbogenerator/motor controller with ancillary energy storage/dischargeAbandonedMar 11, 03Apr 29, 04[H02K, H02P, F02C, F01D]
6698208 Atomizer for a combustorExpiredDec 14, 01Mar 02, 04[F02C]
6634176 Turbine with exhaust vortex disrupter and annular recuperatorExpiredOct 15, 01Oct 21, 03[F02C]
2003/0110,773 Generated system bottoming cycleAbandonedFeb 04, 03Jun 19, 03[F01K]
6512306 Automatic turbogenerator restarting systemWithdrawnJul 06, 01Jan 28, 03[F02N]
2002/0166,324 Integrated turbine power generation system having low pressure supplemental catalytic reactorAbandonedAug 22, 01Nov 14, 02[F23R]
2002/0157,881 Turbine power unit for hybrid electric vehicle applicationsAbandonedNov 13, 01Oct 31, 02[B60K]
2002/0158,517 Method and apparatus for turbogenerator anti-surge controlAbandonedNov 14, 01Oct 31, 02[H02M]
6468051 Helical flow compressor/turbine permanent magnet motor/generatorExpiredMar 07, 01Oct 22, 02[F16K, F04B, F01B]
2002/0148,229 System and method for modular control of a multi-fuel low emissions turbogeneratorAbandonedApr 29, 02Oct 17, 02[F02C]

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