F02C 3/067

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Description

Class  F02C : GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS


Subclass 3/067: Gas-turbine plants characterised by the use of combustion products as the working fluid (generated by intermittent combustion F02C 5/00) having a turbine driving a compressor (power transmission arrangements F02C 7/36; control of working fluid flow F02C 9/16) the compressor comprising only axial stages (F02C 3/1 takes precedence) having counter-rotating rotors (F02C 3/073 takes precedence)

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12264619 Unducted propulsion systemFeb 06, 23Apr 01, 25General Electric Company
12247516 Counter-rotating gas turbine engines including turbine sections with separable torque framesSep 29, 22Mar 11, 25General Electric Company; GE AVIO S.r.L.;
12196129 Compressor with counter-rotating blade rowsJun 08, 21Jan 14, 25General Electric Company; General Electric Deutschland Holding GmbH;
12163478 Overall engine efficiency rating for turbomachine enginesMar 15, 24Dec 10, 24General Electric Company; GE AVIO S.r.L.;
12092020 Architecture of a turbomachine with counter-rotating turbineApr 02, 20Sep 17, 24SAFRAN AIRCRAFT ENGINES
12085014 Ferrule for counter-rotating turbine impellerOct 08, 20Sep 10, 24SAFRAN AIRCRAFT ENGINES
12085026 Overall engine efficiency rating for turbomachine enginesMar 14, 24Sep 10, 24GE AVIO S.r.L.; General Electric Company;
12071889 Counter-rotating turbineApr 05, 22Aug 27, 24General Electric Company; General Electric Deutschland Holding GmbH; GE AVIO SRL;
12049849 Overall engine efficiency rating for turbomachine enginesJun 14, 23Jul 30, 24General Electric Company; GE AVIO S.r.L.;
11988136 Turbomachine having a contrarotating turbine for an aircraftDec 08, 20May 21, 24SAFRAN AIRCRAFT ENGINES; Safran Transmission Systems;
11987369 Turbomachine with unducted dual propellersOct 25, 19May 21, 24SAFRAN AIRCRAFT ENGINES
11814967 Cooling device for a turbomachine casingJun 11, 20Nov 14, 23SAFRAN AIRCRAFT ENGINES
11788423 Turbine rotor wheel for an aircraft turbomachineDec 03, 20Oct 17, 23SAFRAN AIRCRAFT ENGINES
11773785 Reverse-flow gas turbine engineJan 12, 23Oct 03, 23PRATT & WHITNEY CANADA CORP.
11773771 Turbomachine with counter-rotating turbine for an aircraftDec 07, 20Oct 03, 23SAFRAN AIRCRAFT ENGINES
11739643 Method and apparatus for cooling a portion of a counter-rotating turbine engineJan 21, 21Aug 29, 23GE AVIO S.r.L.
11713721 Overall engine efficiency rating for turbomachine enginesSep 02, 22Aug 01, 23GE Avio S.r.l.; General Electric Company;
11572827 Unducted propulsion systemOct 15, 21Feb 07, 23General Electric Company
11555453 Reverse-flow gas turbine engineJul 06, 21Jan 17, 23PRATT & WHITNEY CANADA CORP.
11466624 Overall engine efficiency rating for turbomachine enginesMar 14, 22Oct 11, 22GE Avio S.r.l.; General Electric Company;

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2024/0254,925 OVERALL ENGINE EFFICIENCY RATING FOR TURBOMACHINE ENGINESMar 14, 24Aug 01, 24General Electric Company; GE AVIO S.r.L.;
2024/0093,638 IMPROVED FERRULE FOR COUNTER-ROTATING TURBINE IMPELLEROct 08, 20Mar 21, 24SAFRAN AIRCRAFT ENGINES
2023/0374,935 COUNTER-ROTATING TURBINEMay 18, 22Nov 23, 23Not available
2023/0340,906 COUNTER-ROTATING TURBINEApr 05, 22Oct 26, 23Not available
2023/0243,309 OVERALL ENGINE EFFICIENCY RATING FOR TURBOMACHINE ENGINESSep 02, 22Aug 03, 23General Electric Company; GE AVIO S.r.L.;
2023/0203,985 IMPROVED ARCHITECTURE OF A TURBOMACHNE WITH COUNTER-ROTATING TURBINEJun 01, 21Jun 29, 23SAFRAN AIRCRAFT ENGINES
2022/0205,387 GAS TURBINE ENGINE WITH INTERDIGITATED TURBINE AND GEAR ASSEMBLYDec 31, 20Jun 30, 22Not available
2022/0178,302 GAS TURBINE APPARATUS WITH COUNTER-ROTATING BLADESDec 07, 20Jun 09, 22Not available
2020/0116,081 Aircraft Turbomachine with Mechanical Reducer and Contrarotative TurbineOct 09, 19Apr 16, 20SAFRAN AIRCRAFT ENGINES
2019/0085,766 COUNTER ROTATING TURBINE WITH REVERSING SPEED REDUCTION ASSEMBLYSep 20, 17Mar 21, 19Not available
2018/0142,619 MULTIPLE AXLE-SLEEVE DRIVING BIDIRECTIONAL ROTATING WHEEL-SHAPED FAN TURBINE AND A BUSHING WHEEL-SHAPED FAN COMPRESSORDec 20, 17May 24, 18Not available
2016/0298,539 TURBOMACHINERY WITH HIGH RELATIVE VELOCITYDec 12, 14Oct 13, 16UNITED TECHNOLOGIES CORPORATION
2013/0318,999 GAS TURBINE ENGINE WITH A COUNTER ROTATING FANMay 31, 12Dec 05, 13UNITED TECHNOLOGIES CORPORATION

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Top Owners in This Subclass

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Patents Issued To Date - By Filing Year

199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024Filing Years0255075100% of Matters Issued

Average Time to Issuance