CLEARSIGN COMBUSTION CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F23C METHODS OR APPARATUS FOR COMBUSTION USING FLUENT FUEL 741
 
  
 
F23D BURNERS 532
 
  
 
F23N REGULATING OR CONTROLLING COMBUSTION 442
 
  
 
F23L AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS 89
 
  
 
F23Q IGNITION 611
 
  
 
F27D DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 619
 
  
 
B01D SEPARATION 5129
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 5104
 
  
 
F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES 568
 
  
 
F23G CREMATION FURNACES; CONSUMING WASTE BY COMBUSTION57

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0073,727 LOW NOx BURNERNov 20, 17Mar 15, 18[F23C, F23D]
2018/0051,874 COOLED CERAMIC ELECTRODE SUPPORTSAug 02, 17Feb 22, 18[F23C]
2018/0038,588 BURNER AND SUPPORT STRUCTURE WITH A PERFORATED FLAME HOLDERAug 03, 17Feb 08, 18[F23C, F23D]
2018/0023,810 PREFABRICATED INTEGRATED COMBUSTION ASSEMBLIES AND METHODS OF INSTALLING THE SAME INTO A COMBUSTION SYSTEMFeb 16, 16Jan 25, 18[B23P, F23N]
2017/0350,591 BURNER SYSTEM WITH A PERFORATED FLAME HOLDER AND A PLURALITY OF FUEL SOURCESAug 04, 17Dec 07, 17[F23D]
2017/0307,212 FUEL NOZZLE ASSEMBLY FOR A BURNER INCLUDING A PERFORATED FLAME HOLDERApr 26, 17Oct 26, 17[F23N, F23D]
2017/0276,346 APPARATUS AND METHOD FOR ELECTRICALLY STABILIZED COMBUSTIONJun 08, 17Sep 28, 17[F23C, F23D]
2017/0191,655 PERFORATED FLAME HOLDER WITH INTEGRATED SUB-QUENCH DISTANCE LAYERNov 07, 16Jul 06, 17[F23D]
2017/0146,232 BURNER SYSTEM INCLUDING A MOVEABLE PERFORATED FLAME HOLDERDec 08, 16May 25, 17[F23M, F23C, F23D]
2017/0146,234 ASYMMETRICAL UNIPOLAR FLAME IONIZER USING A STEP-UP TRANSFORMERDec 15, 16May 25, 17[F23C]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9909757 Low NOx burner and method of operating a low NOx burnerDec 01, 14Mar 06, 18[F23C, F23D]
9909759 System for electrically-driven classification of combustion particlesMay 26, 16Mar 06, 18[B03C, F23G, F23J, F23C]
9885496 Fluid heater with perforated flame holderJul 28, 15Feb 06, 18[F24H, F22B, F23D]
9879858 Inertial electrode and system configured for electrodynamic interaction with a flameDec 30, 12Jan 30, 18[F23L, F23C, F23D]
9857076 Perforated flame holder and burner including a perforated flame holderFeb 14, 14Jan 02, 18[F23M, F23C, F23D]
9828288 Perforated burner for a rotary kilnAug 11, 15Nov 28, 17[C04B, F27B, C01G]
9803855 Selectable dilution low NOx burnerFeb 14, 14Oct 31, 17[F23M, F23C, F23D]
9797595 Fuel combustion system with a perforated reaction holderFeb 14, 14Oct 24, 17[F23L, F23N, F27D, F23C, F23D]
9791171 Fluid heater with a variable-output burner including a perforated flame holder and method of operationJul 28, 15Oct 17, 17[F24H, F23N, F23C]
9746180 Multijet burner with charge interactionNov 27, 13Aug 29, 17[F23N, F23C, F23D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2017/0009,985 CHARGED ION FLOWS FOR COMBUSTION CONTROLAbandonedNov 27, 13Jan 12, 17[F23N]
2016/0161,115 BURNER WITH ELECTRODYNAMIC FLAME POSITION CONTROL SYSTEMAbandonedOct 23, 13Jun 09, 16[F23D]
2016/0123,576 METHOD AND APPARATUS FOR ENHANCING FLAME RADIATION IN A COAL-BURNER RETROFITAbandonedNov 02, 15May 05, 16[F23N, F23C]
2016/0003,471 BURNER WITH A PERFORATED FLAME HOLDER SUPPORT STRUCTUREAbandonedJul 07, 15Jan 07, 16[F23C, F23D]
2015/0369,476 COMBUSTION SYSTEMS AND METHODS FOR REDUCING COMBUSTION TEMPERATUREAbandonedJun 22, 15Dec 24, 15[F23C]
2015/0276,211 FLAME CONTROL IN THE FLAME-HOLDING REGIONAbandonedMar 18, 14Oct 01, 15[F23C]
2015/0147,705 LOW NOx LIFTED FLAME BURNERAbandonedDec 01, 14May 28, 15[F23C]
2015/0121,890 HIGH VELOCITY COMBUSTORAbandonedApr 30, 13May 07, 15[F02C, F23R, F23C]
2015/0118,629 BURNER WITH FLAME POSITION ELECTRODE ARRAYAbandonedMay 31, 13Apr 30, 15[F23C]
2015/0107,260 GAS TURBINE AND GAS TURBINE AFTERBURNERAbandonedOct 30, 14Apr 23, 15[F02K, F02C]
2015/0104,748 ELECTRODYNAMIC COMBUSTION CONTROL (ECC) TECHNOLOGY FOR BIOMASS AND COAL SYSTEMSAbandonedOct 14, 14Apr 16, 15[F23C]
2015/0079,524 LIFTED FLAME LOW NOx BURNER WITH FLAME POSITION CONTROLAbandonedOct 23, 13Mar 19, 15[F23C]
2014/0335,460 ELECTRICALLY ENHANCED COMBUSTION CONTROL SYSTEM WITH MULTIPLE POWER SOURCES AND METHOD OF OPERATIONAbandonedMay 13, 14Nov 13, 14[F23C]
2014/0295,094 COMBUSTION DEPOSITION SYSTEMS AND METHODS OF USEAbandonedMar 12, 14Oct 02, 14[C23C]
2014/0287,368 PREMIXED FLAME LOCATION CONTROLAbandonedMar 24, 14Sep 25, 14[F23N]
2014/0272,730 ACTIVE MAGNETIC CONTROL OF A FLAMEAbandonedMar 12, 14Sep 18, 14[F23N, F23C]
2014/0272,731 FLAME CONTROL IN THE MOMENTUM-DOMINATED FLUID DYNAMICS REGIONAbandonedMar 17, 14Sep 18, 14[F23N]
2014/0255,856 FLAME CONTROL IN THE BUOYANCY-DOMINATED FLUID DYNAMICS REGIONAbandonedMar 06, 14Sep 11, 14[F23N]
2014/0227,645 BURNER SYSTEMS CONFIGURED TO CONTROL AT LEAST ONE GEOMETRIC CHARACTERISTIC OF A FLAME AND RELATED METHODSAbandonedFeb 05, 14Aug 14, 14[F23N]
2014/0227,646 COMBUSTION SYSTEM INCLUDING AT LEAST ONE FUEL FLOW EQUALIZERAbandonedFeb 12, 14Aug 14, 14[F23N]

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