F23R 3/26

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Description

Class  F23R : GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS


Subclass 3/26: Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration (reverse-flow combustion chambers F23R 3/54; cyclone or vortex type combustion chambers F23R 3/58) Controlling the air flow

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12241629 Controlling sootAug 26, 22Mar 04, 25Rolls Royce plc
12222104 Turbine engine combustor and combustor linerMay 10, 22Feb 11, 25General Electric Company
12196135 Sectional fuel manifoldsJul 18, 23Jan 14, 25Delavan Inc.
12104795 Combustor with a variable primary zone combustion chamberMay 25, 22Oct 01, 24General Electric Company
12065977 Multi-duct exhaust system for gas turbine engineDec 30, 22Aug 20, 24RTX CORPORATION
12053821 Engine article with integral liner and nozzleMar 16, 23Aug 06, 24RTX CORPORATION
12031723 Perforated plate for gas turbine combustor, gas turbine combustor, and gas turbineAug 31, 21Jul 09, 24MITSUBISHI HEAVY INDUSTRIES, LTD.
11988145 Apparatus and method for mitigating airflow separation around engine combustorJan 07, 19May 21, 24RTX CORPORATION
11971173 Two-stage combustor for gas turbine engineJul 23, 21Apr 30, 24PRATT & WHITNEY CANADA CORP.
11959401 Deswirl system for gas turbine engineMar 24, 23Apr 16, 24Honeywell International, Inc.
11933498 Aerospace structure methods of manufacturingOct 12, 21Mar 19, 24Venture Aerospace, LLC
11898755 Combustor with a variable volume primary zone combustion chamberJun 08, 22Feb 13, 24General Electric Company
11898756 Multi-nozzle fuel injection method for gas turbineJan 17, 23Feb 13, 24Qingdao Zhennuo Laser Technology Co., Ltd.
11846422 Systems for fuel injectors with fuel air heat exchangersAug 19, 21Dec 19, 23Collins Engine Nozzles, Inc.
11732659 Controlling sootAug 26, 22Aug 22, 23Rolls Royce plc
11725822 Combustion module for a gas turbo engine with chamber bottom stopMay 28, 19Aug 15, 23SAFRAN AIRCRAFT ENGINES
11719158 Low emissions combustor assembly for gas turbine engineMar 02, 21Aug 08, 23RAYTHEON TECHNOLOGIES CORPORATION
11719155 Method for operating gas turbine combustorJun 08, 22Aug 08, 23Toshiba Energy Systems & Solutions Corporation
11713717 Sectional fuel manifoldsNov 12, 21Aug 01, 23Collins Engine Nozzles, Inc.
11680708 Multi-tube combustor and gas turbine including sameDec 02, 21Jun 20, 23DOOSAN ENERBILITY CO., LTD.

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0116,224 GAS TURBINE ENGINE WITH ENTRAINED PARTICLE SEPARATORSOct 04, 23Apr 10, 25Not available
2025/0067,435 COMBUSTOR WITH A DILUTION PASSAGENov 11, 24Feb 27, 25Not available
2024/0247,613 APPARATUS AND METHOD FOR MITIGATING AIRFLOW SEPARATION AROUND ENGINE COMBUSTORFeb 23, 24Jul 25, 24Not available
2024/0125,476 GAS TURBINE COMBUSTOR AND GAS TURBINEDec 28, 21Apr 18, 24Not available
2023/0358,403 COMBUSTOR DILUTION WITH VORTEX GENERATING TURBULATORSJul 18, 23Nov 09, 23Not available
2023/0112,151 Premixing ApparatusSep 08, 22Apr 13, 23Rinnai Corporation
2023/0094,199 ANNULAR COMBUSTOR DILUTION WITH SWIRL VANES FOR LOWER EMISSIONSJan 28, 22Mar 30, 23Not available
2022/0364,729 COMBUSTOR DILUTION WITH VORTEX GENERATING TURBULATORSMay 14, 21Nov 17, 22Not available
2021/0010,423 OXIDATION ACTIVATED COOLING FLOWJul 08, 19Jan 14, 21Not available
2020/0011,532 SYSTEM FOR COMBUSTOR COOLING AND TRIM AIR PROFILE CONTROLJul 06, 18Jan 09, 20Rolls-Royce North American Technologies Inc.
2019/0154,262 HIGH EFFICIENCY COMBUSTION CONTROL SYSTEM AND METHOD THEREOFJul 17, 18May 23, 19Not available
2019/0113,232 MODULATED COMBUSTOR BYPASSOct 12, 17Apr 18, 19Not available
2019/0093,891 GAS TURBINE ASSEMBLIES AND METHODSSep 25, 17Mar 28, 19Not available
2019/0017,705 COMBUSTOR TRIPLE LINER ASSEMBLY FOR GAS TURBINE ENGINESJul 09, 18Jan 17, 19Siemens Aktiengesellschaft
2018/0356,094 VARIABLE GEOMETRY ROTATING DETONATION COMBUSTORJun 09, 17Dec 13, 18Not available
2018/0216,827 PNEUMATICALLY-ACTUATED FUEL NOZZLE AIR FLOW MODULATORJan 27, 17Aug 02, 18Not available
2018/0149,361 SYSTEMS AND METHODS FOR COMBUSTOR PANELNov 30, 16May 31, 18United Technologies Corporation
2018/0010,800 SHOCK COMPRESSION BASED SUPERSONIC COMBUSTORJun 14, 16Jan 11, 18Not available
2015/0267,918 COMBUSTION CHAMBER WITH COOLING SLEEVEMar 17, 15Sep 24, 15ANSALDO ENERGIA SWITZERLAND AG
2015/0101,332 COMBUSTION CHAMBER OF A GAS TURBINE WITH IMPROVED ACOUSTIC DAMPINGOct 09, 14Apr 16, 15GENERAL ELECTRIC TECHNOLOGY GMBH

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Top Owners in This Subclass

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Patents Issued To Date - By Filing Year

19931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024Filing Years0255075100% of Matters Issued

Average Time to Issuance