ClassID:

139175

F02C6/206 - CPC Classification

Classification description:

Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus ; Adaptations of gas- turbine plants for special use; Adaptations of gas-turbine plants for driving vehicles the vehicles being airscrew driven

Recent Application in this class:
#1
20260092556
2026-04-02

OPEN ROTOR PROPULSION SYSTEM WITH FORWARD EXHAUST OUTLET(S)

#2
20260071574
2026-03-12

REDUCTION GEARBOX FOR GAS TURBINE ENGINE

#3
20250361831
2025-11-27

HYBRID GAS TURBINE ENGINE

#4
20250353604
2025-11-20

BEARING CURRENT MITIGATION FOR AN ELECTRIC MACHINE EMBEDDED IN A GAS TURBINE ENGINE

#5
20250353382
2025-11-20

PROPULSION SYSTEM FOR AN AIRCRAFT

#6
20250314200
2025-10-09

THRUST DIVERTER FOR AN OPEN ROTOR AIRCRAFT PROPULSION SYSTEM

#7
20250250020
2025-08-07

OPEN ROTOR AIRCRAFT PROPULSION SYSTEM WITH BYPASS FLOWPATH

#8
20250215824
2025-07-03

IMPROVED PROPULSION ASSEMBLY FOR MULTI-ENGINE HYBRID AIRCRAFT

#9
20250188867
2025-06-12

METHOD AND UNIT FOR CONTROLLING A MOTOR ASSEMBLY

#10
20250172090
2025-05-29

UNDUCTED PROPULSION SYSTEM

#11
20250043719
2025-02-06

REVERSE FLOW GAS TURBINE ENGINE HAVING ELECTRIC MACHINE

#12
20250043689
2025-02-06

UNDUCTED TURBINE ENGINE COMPRISING STATOR BLADES HAVING DIFFERENT CHORDS

#13
20240417101
2024-12-19

GAS TURBINE ENGINE WITH CLUTCH ASSEMBLY

#14
20240401490
2024-12-05

PROPULSION SYSTEM AND METHOD FOR OPERATION

#15
20240368997
2024-11-07

UNDUCTED THRUST PRODUCING SYSTEM ARCHITECTURE

#16
20240254922
2024-08-01

Gas turbine engine

#17
20240209776
2024-06-27

SYSTÈME PROPULSIF AÉRONAUTIQUE

#18
20240208664
2024-06-27

EXHAUST DUCT FOR HYBRID AIRCRAFT POWERPLANT

#19
20240167424
2024-05-23

ENGINE POWER EXTRACTION SYSTEM AND METHOD FOR USING SAME

#20
20240125275
2024-04-18

METHOD AND AIRCRAFT PROVIDED WITH AT LEAST ONE COMBUSTION ENGINE AND A DRIVE SYSTEM WITH AT LEAST TWO ELECTRIC MACHINES

#21
20240102421
2024-03-28

GAS TURBINE ENGINE AND METHOD OF OPERATION

#22
20240093641
2024-03-21

PROPELLER SHAFT ASSEMBLY FOR AIRCRAFT ENGINE

#23
20240092494
2024-03-21

Propulsion System for an Aircraft

#24
20240035419
2024-02-01

Geared turbine engine with relatively lightweight propulsor module

#25
20240018900
2024-01-18

Unducted propulsion system

#26
20230417180
2023-12-28

HYBRID PROPULSION TURBOMACHINE AND AIRCRAFT COMPRISING SUCH A TURBOMACHINE

#27
20230415914
2023-12-28

ADVANCE RATIO FOR SINGLE UNDUCTED ROTOR ENGINE

#28
20230415902
2023-12-28

AIRCRAFT POWERPLANT WITH BOOSTED GAS TURBINE ENGINE

#29
20230358178
2023-11-09

Reduction gearbox for gas turbine engine

#30
20230358177
2023-11-09

Reduction gearbox for gas turbine engine

#31
20230358169
2023-11-09

ACTIVE COMPRESSOR STALL RECOVERY

#32
20230344322
2023-10-26

BEARING CURRENT MITIGATION FOR AN ELECTRIC MACHINE EMBEDDED IN A GAS TURBINE ENGINE

#33
20230323789
2023-10-12

Gas turbine engine with third stream

#34
20230258133
2023-08-17

Planetary gearbox for gas turbine engine

#35
20230250755
2023-08-10

PROPULSION SYSTEM CONFIGURATIONS AND METHODS OF OPERATION

#36
20230151772
2023-05-18

Reverse-flow gas turbine engine

#37
20230085244
2023-03-16

Inlet for unducted propulsion system

#38
20230077144
2023-03-09

Gas turbine engine shaft with lobed support structure

#39
20230048950
2023-02-16

CABLE FOR ELECTRIC POWER TRANSMISSION

#40
20230046156
2023-02-16

ELECTRIC COMPONENT FOR AN ELECTRIC SYSTEM

#41
20230044799
2023-02-09

METHOD AND DEVICE FOR MONITORING THE OPERATION OF A PAIR OF TURBOPROP ENGINES THROUGH THE NUMERICAL PROCESSING OF AN ACOUSTIC MAGNITUDE

#42
20230016164
2023-01-19

Gas turbine engine and method of operation

#43
20230013754
2023-01-19

Power management methods for multi engine rotorcraft

#44
20220412272
2022-12-29

Hybrid electric variable area turbine

#45
20220403776
2022-12-22

Turbine over-speed brake for hybrid electric gas turbine engine

#46
20220316407
2022-10-06

Operating a turboprop engine for in-flight restart

#47
20220316403
2022-10-06

Hybrid gas turbine engine and torque transfer assembly therefore

#48
20220302801
2022-09-22

Bearing current mitigation for an electric machine embedded in a gas turbine engine

#49
20220275761
2022-09-01

Through-flow gas turbine engine with electric motor and electric generator

#50
20220268209
2022-08-25

Compact low-pressure compressor

#51
20220259985
2022-08-18

OPEN ROTOR TURBOMACHINERY ENGINES

#52
20220252008
2022-08-11

PROPULSION SYSTEM CONFIGURATIONS AND METHODS OF OPERATION

#53
20220252007
2022-08-11

ACTIVE COMPRESSOR STALL RECOVERY

#54
20220235699
2022-07-28

Planetary gearbox for gas turbine engine

#55
20220220895
2022-07-14

Airfoil attachment for turbine rotor

#56
20220154651
2022-05-19

Gas turbine engine having a turbomachine and an electric motor coupled to a propeller

#57
20220120223
2022-04-21

Gas turbine system and gas turbine power generator

#58
20220106032
2022-04-07

Aircraft engine with clutch and mechanical lock

#59
20220065177
2022-03-03

Hybrid electric engine speed regulation

#60
20220065163
2022-03-03

GROUND OPERATIONS OF A HYBRID ELECTRIC PROPULSION SYSTEM

#61
20220063825
2022-03-03

Hybrid electric aircraft engine

#62
20220041303
2022-02-10

THRUST WITH THE MINIMUM EJECTION OF PROPELLANT

#63
20220024574
2022-01-27

High speed rotorcraft propulsion configuration

#64
20210404388
2021-12-30

Reverse-flow gas turbine engine

#65
20210388732
2021-12-16

HYBRID GAS TURBINE ENGINE

#66
20210381517
2021-12-09

Reverse flow engine architecture

#67
20210355881
2021-11-18

Through-flow gas turbine engine with electric motor and electric generator

#68
20210339867
2021-11-04

Layered fuselage shield

#69
20210320612
2021-10-14

Motor controller electronics arrangements with passively cooled feeder cables

#70
20210285372
2021-09-16

Turbofan engine comprising a set of rotatable blades for blocking off the bypass flow duct and redirecting the air flow

#71
20210276693
2021-09-09

Propeller governor for electric synchronous thrust

#72
20210270183
2021-09-02

Reverse-flow gas turbine engine

#73
20210222628
2021-07-22

Gas turbine engine with clutch assembly

#74
20210206484
2021-07-08

COMBINATION COMPRESSED-FLUID EJECTOR AND PROPELLER PROPULSION SYSTEM

#75
20210189960
2021-06-24

AIRCRAFT TURBOPROP ENGINE INLET COMPACT PROFILE CONFIGURATION

#76
20210108595
2021-04-15

Unducted single rotor engine and method for operation

#77
20210108575
2021-04-15

System and method for control for unducted engine

#78
20210102501
2021-04-08

Control system and method for a turbopropeller engine based on inlet temperature sensing

#79
20210070463
2021-03-11

Electrical systems

#80
20210061451
2021-03-04

Power management systems for multi engine rotorcraft

#81
20210054782
2021-02-25

POWER SYSTEM FOR ROTARY WING AIRCRAFT

#82
20200391873
2020-12-17

System and method for operating a multi-engine rotorcraft for ice accretion shedding

#83
20200362754
2020-11-19

SYSTEM AND METHOD FOR OPERATING A ROTORCRAFT

#84
20200331622
2020-10-22

Propulsion engine for an aircraft

#85
20200324906
2020-10-15

Propulsion system for an aircraft

#86
20200308979
2020-10-01

Unducted thrust producing system architecture

#87
20200271010
2020-08-27

Unducted thrust producing system

#88
20200130821
2020-04-30

Aircraft engine with clutch and mechanical lock

#89
20200103834
2020-04-02

Multi-variable fleet optimisation method and system

#90
20200095942
2020-03-26

Multi-spool gas turbine engine architecture

#91
20200095933
2020-03-26

Signal processing for variable geometry mechanism control

#92
20200088097
2020-03-19

Ported shroud system for turboprop inlets

#93
20200072322
2020-03-05

Transmission for engine with two power inputs

#94
20200062382
2020-02-27

High speed rotorcraft propulsion configuration

#95
20200025146
2020-01-23

Nacelle-integrated air-driven augmentor fan for increasing propulsor bypass ratio and efficiency

#96
20200010207
2020-01-09

Method and system for controlling a crossing threshold used in determining rotational speed of a propeller

#97
20190203620
2019-07-04

Turboprop engine assembly with combined engine and cooling exhaust

#98
20190162078
2019-05-30

Hydraulic line routing plate

#99
20190136710
2019-05-09

Unducted thrust producing system

#100
20190118936
2019-04-25

Pitch actuation system for a turbomachine propeller

#101
20190112973
2019-04-18

Compound engine assembly with offset turbine shaft, engine shaft and inlet duct

#102
20190106198
2019-04-11

Simplified pitch actuation system for a turbomachine propeller

#103
20190101057
2019-04-04

Fluid cooling structure for an electric machine of a gas turbine engine

#104
20190061965
2019-02-28

Turbine engine with single wall cantilevered architecture

#105
20190031359
2019-01-31

System for controlling a controlled parameter

#106
20190031358
2019-01-31

Aircraft power setting trims for life extension

#107
20190024582
2019-01-24

Gearbox for gas turbine engine

#108
20190010957
2019-01-10

Variable pitch blade pivot for a turbine engine fan hub

#109
20180354638
2018-12-13

Turbomachine comprising a trap for foreign objects circulating in an air flow

#110
20180354635
2018-12-13

Propulsion system for an aircraft

#111
20180347468
2018-12-06

Additively manufactured heat exchanger

#112
20180347460
2018-12-06

Turbojet of the unducted rotor type

#113
20180334964
2018-11-22

Support assembly for a propeller shaft

#114
20180327104
2018-11-15

AIRCRAFT PROPULSION ASSEMBLY COMPRISING A FAN CONJOINTLY DRIVEN BY TWO ENGINES

#115
20180304991
2018-10-25

Feedback system for pitch-adjustable blades of aircraft bladed rotor

#116
20180304753
2018-10-25

Propulsion system for an aircraft

#117
20180283468
2018-10-04

Clutch device for gas turbine engines

#118
20180258790
2018-09-13

Turbine housing assembly

#119
20180238269
2018-08-23

Engine driven by Sc0cycle with independent shafts for combustion cycle elements and propulsion elements

#120
20180230902
2018-08-16

Planetary gearbox for gas turbine engine

#121
20180223739
2018-08-09

Turbine rotor with low over-speed requirements

#122
20180179948
2018-06-28

Compound engine assembly with cantilevered compressor and turbine

#123
20180135512
2018-05-17

Gearbox for gas turbine engine

#124
20180112603
2018-04-26

Power plant thrust management system for turboprop engines

#125
20180105278
2018-04-19

Turbine engine having horizontally offset axes

#126
20180073438
2018-03-15

Reverse flow multi-spool gas turbine engine with aft-end accessory gearbox drivingly connected to both high pressure spool and low pressure spool

#127
20180073429
2018-03-15

Reverse flow gas turbine engine with offset RGB

#128
20180073428
2018-03-15

Reverse-flow gas turbine engine

#129
20180050810
2018-02-22

Propulsion engine for an aircraft

#130
20180037333
2018-02-08

Hybrid aircraft

#131
20180037332
2018-02-08

Hybrid aircraft with transversely oriented engine

#132
20180023482
2018-01-25

Turbine shaft power take-off

#133
20180023480
2018-01-25

Multi-spool gas turbine engine architecture

#134
20180023471
2018-01-25

Gas turbine engine shaft architecture and associated method of disassembly

#135
20180023470
2018-01-25

Gear train architecture for a multi-spool gas turbine engine

#136
20170321601
2017-11-09

Propulsion unit with selective coupling means

#137
20170320584
2017-11-09

Hybrid gas-electric turbine engine

#138
20170314474
2017-11-02

Integral offset oil tank for inline accessory gearbox

#139
20170314469
2017-11-02

Reconfigurable lubrication system for multiple powertrain orientations

#140
20170306773
2017-10-26

Simplified pitch actuation system for a turbine engine propeller

#141
20170284408
2017-10-05

Supply of air to an air-conditioning circuit of an aircraft cabin

#142
20170260903
2017-09-14

Air inlet duct for an aircraft turbine engine

#143
20170241341
2017-08-24

Air intake with scroll portion and strutted portion for gas turbine engine

#144
20170234217
2017-08-17

Inline propeller gearbox brake

#145
20170211477
2017-07-27

Oil system for turbine engine and related method

#146
20170211474
2017-07-27

Hybrid propulsion system for a gas turbine engine including a fuel cell

#147
20170159571
2017-06-08

Multi-shaft gas turbine engine

#148
20170122257
2017-05-04

Nacelle-integrated air-driven augmentor fan for increasing propulsor bypass ratio and efficiency

#149
20170082066
2017-03-23

Propulsion system using supercritical COpower transfer

#150
20170066541
2017-03-09

Method of regulating a three-engined power plant for a rotary wing aircraft

#151
20170066525
2017-03-09

System and method for propeller pitch control

#152
20170037756
2017-02-09

Turboprop engine assembly with combined engine and cooling exhaust

#153
20170008633
2017-01-12

Supply of air to an air-conditioning circuit of an aircraft cabin from its turboprop engine

#154
20160376017
2016-12-29

Method of regulating a three-engined power plant for a rotary wing aircraft

#155
20160376016
2016-12-29

Suspension structure for suspending a turboprop having two unducted propellers from a structural element of an aircraft with rigid fastening of the air intake structure

#156
20160369746
2016-12-22

Engine driven by SC0cycle with independent shafts for combustion cycle elements and propulsion elements

#157
20160369653
2016-12-22

Hydraulic line routing plate

#158
20160347457
2016-12-01

Supply of air to an air-conditioning circuit of an aircraft cabin from its turboprop engine

#159
20160333734
2016-11-17

Immersed core flow inlet between rotor blade and stator vane for an unducted fan gas turbine

#160
20160332736
2016-11-17

Supply of air to an air-conditioning circuit of an aircraft cabin from its turboprop engine

#161
20160312695
2016-10-27

Turboprop engine with compressor turbine shroud

#162
20160311548
2016-10-27

Method for automatically controlling the operating speed of a helicopter turboshaft engine, corresponding control device and helicopter provided with such a device

#163
20160245163
2016-08-25

Compound engine assembly with cantilevered compressor and turbine

#164
20160245156
2016-08-25

Engine assembly with modular compressor and turbine

#165
20160230672
2016-08-11

System and method for emergency starting of an aircraft turbomachine

#166
20160177872
2016-06-23

Exhaust duct

#167
20160167799
2016-06-16

Method of managing a power demand for the operation of a pilotless aircraft equipped with an internal combustion engine

#168
20160160757
2016-06-09

Air intake arrangement

#169
20160131032
2016-05-12

Power plant having a two-stage cooler device for cooling the admission air for a turboshaft engine

#170
20160131028
2016-05-12

GAS TURBINE

#171
20160076446
2016-03-17

Aircraft hybrid engine having gear ring encased fans

#172
20160010487
2016-01-14

Vane assembly for an unducted thrust producing system

#173
20160003146
2016-01-07

Rotating inlet cowl for a turbine engine, comprising an eccentric forward end

#174
20150367951
2015-12-24

Monitor system for monitoring the starting of a rotary wing aircraft, an aircraft, and a method using the system

#175
20150361879
2015-12-17

Gas turbine engine with embedded distributed fans

#176
20150291276
2015-10-15

Unducted thrust producing system architecture

#177
20150284070
2015-10-08

Unducted thrust producing system

#178
20150274306
2015-10-01

Hybrid drive for gas turbine engine

#179
20150217854
2015-08-06

Turbine engine having a pair of propellers for an aircraft

#180
20150078888
2015-03-19

Contra-rotating open fan propulsion system

#181
20150047369
2015-02-19

Fixed turbine engine receiver part comprising an assembly for holding ancillary systems in position inside a fixed hollow shaft

#182
20150040538
2015-02-12

Rotor noise suppression

#183
20140271151
2014-09-18

Oil transfer system on rotating shaft

#184
20140225378
2014-08-14

System for in-flight restarting of a multi-shaft turboprop engine

#185
20140099202
2014-04-10

Turbomachine propeller blade setting device

#186
20140069107
2014-03-13

Turboprop engine with compressor turbine shroud

#187
20140003945
2014-01-02

Hub for radial housing of a helical ring of a turbomachine with variable-pitch blades and assembly comprising such a hub

#188
20130216371
2013-08-22

Turboprop engine systems with noise reducing inlet assemblies

#189
20130062463
2013-03-14

Transverse mounted gas turbine engine

#190
20130047756
2013-02-28

Counterweight-based device for controlling the orientation of fan blades of a turboprop engine

#191
20120321476
2012-12-20

Retention device for a rotating blade

#192
20120321470
2012-12-20

Mounting system

#193
20120308385
2012-12-06

Turboprop provided with a blade-positioning device

#194
20120237359
2012-09-20

Cooled pusher propeller system

#195
20120134822
2012-05-31

Hub for a propeller having variable pitch blades

#196
20120128490
2012-05-24

Prestressing device having circumferential activity

#197
20120121417
2012-05-17

Blade-retaining device for turbomachine propeller

#198
20120093652
2012-04-19

Unducted propeller with variable pitch blades for a turbomachine

#199
20120079808
2012-04-05

Hydraulic system for fan pitch change actuation of counter-rotating propellers

#200
20120036827
2012-02-16

Rotating inlet cowl for a turbine engine, comprising an eccentric forward end

#201
20120034080
2012-02-09

Actuation mechanism for a convertible gas turbine propulsion system

#202
20120023891
2012-02-02

Gas turbine engine with noise attenuating variable area fan nozzle

#203
20110314788
2011-12-29

Aircraft turbine engine and use of such a turbine engine

#204
20110173987
2011-07-21

Exhaust duct with bypass channel

#205
20110142648
2011-06-16

Engine arrangement

#206
20110030385
2011-02-10

Propulsion unit

#207
20100293920
2010-11-25

Propfan engine

#208
20100151985
2010-06-17

Coupling assembly

#209
20100139278
2010-06-10

Method and apparatus for the operation of a turboprop aircraft engine provided with pusher propellers

#210
20100126178
2010-05-27

Hybrid propulsive engine including at least one independently rotatable turbine stator

#211
20100083669
2010-04-08

Hybrid propulsive engine including at least one independently rotatable propeller/fan

#212
20100083668
2010-04-08

Hybrid propulsive engine including at least one independently rotatable compressor stator

#213
20100083631
2010-04-08

Hybrid propulsive engine including at least one independently rotatable turbine stator

#214
20090311100
2009-12-17

Turboprop including a set of adjustable-pitch blades

#215
20090297357
2009-12-03

Propfan assembly

#216
20090255506
2009-10-15

Rotary internal combustion engine

#217
20090217643
2009-09-03

Gas discharge device for a vehicle engine

#218
20090202357
2009-08-13

Cooled pusher propeller system

#219
20090184195
2009-07-23

Hydrazine monopropellant decomposition air turboprop engine

#220
20090159110
2009-06-25

Thermoelectric generation system

#221
20090140182
2009-06-04

Actuation mechanism for a convertible gas turbine propulsion system

#222
20090139202
2009-06-04

Convertible gas turbine propulsion system

#223
20090126366
2009-05-21

Exhaust duct with bypass channel

#224
20090107110
2009-04-30

Fan control apparatus

#225
20090104019
2009-04-23

Offset drive for gas turbine engine

#226
20070056291
2007-03-15

Propeller or propeller drive

#227
20070049454
2007-03-01

GAS TURBINE GEARBOX

#228
20050221946
2005-10-06

Gas turbine gearbox

#229
20050026745
2005-02-03

Compact epicyclic gear carrier

#230
18758112
2025-12-09

Open rotor with fixed guide vane/stator

#231
18238669
2024-09-24

Heat exchanger bypass ejector

#232
18106272
2025-06-24

Thrust diverter for an open rotor aircraft propulsion system

#233
17503184
2023-02-07

Unducted propulsion system

#234
15646592
2018-06-26

Propulsion system for an aircraft