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
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;
11428160 Gas turbine engine with interdigitated turbine and gear assemblyDec 31, 20Aug 30, 22General Electric Company
11415045 Aircraft turbomachine with mechanical reducer and contrarotative turbineOct 09, 19Aug 16, 22SAFRAN AIRCRAFT ENGINES
11415063 Reverse-flow gas turbine engineSep 15, 16Aug 16, 22PRATT & WHITNEY CANADA CORP.
11408352 Reverse-flow gas turbine engineOct 22, 20Aug 09, 22PRATT & WHITNEY CANADA CORP.
11371379 Turbomachine with alternatingly spaced turbine rotor bladesJul 26, 18Jun 28, 22General Electric Company
11352980 Turbine engine with a contra-rotating turbine for an aircraftOct 08, 19Jun 07, 22SAFRAN AIRCRAFT ENGINES
11313240 Rounded radial snap configuration for a gas turbine engine cover plateFeb 05, 20Apr 26, 22RAYTHEON TECHNOLOGIES CORPORATION
11313282 Hybrid transmission turbojet engineJun 21, 19Apr 26, 22Safran Aero Boosters SA
11255221 Lube system for geared turbine sectionSep 20, 17Feb 22, 22General Electric Company

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2024/0110,504 COUNTER-ROTATING GAS TURBINE ENGINES INCLUDING TURBINE SECTIONS WITH SEPARABLE TORQUE FRAMESSep 29, 22Apr 04, 24General Electric Company; GE AVIO S.r.L.;
2024/0093,638 IMPROVED FERRULE FOR COUNTER-ROTATING TURBINE IMPELLEROct 08, 20Mar 21, 24SAFRAN AIRCRAFT ENGINES
2024/0018,900 UNDUCTED PROPULSION SYSTEMFeb 06, 23Jan 18, 24Not available
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
2022/0389,862 COMPRESSOR WITH COUNTER-ROTATING BLADE ROWSJun 08, 21Dec 08, 22Not available
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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Patents Issued To Date - By Filing Year

Average Time to Issuance