ClassID:

140431

F02K9/48 - CPC Classification

Classification description:

Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using liquid or gaseous propellants; Feeding propellants using pumps driven by a gas turbine fed by propellant combustion gases or fed by vaporized propellants or other gases

Recent Application in this class:
#1
20260146575
2026-05-28

TURBINE ASSEMBLY

#2
20260139643
2026-05-21

ROTODYNAMIC FLUID TRANSFER AND ENERGY EXTRACTION DEVICE WITH SHAFTLESS ROTATIONAL COUPLING AND CONSTRAINT AS USED IN ROCKET PROPULSION SYSTEMS

#3
20260078826
2026-03-19

SELF-OPTIMIZING SEAL FOR TURBOMACHINERY, AND ASSOCIATED SYSTEMS AND METHODS

#4
20260054861
2026-02-26

SYSTEM AND METHOD FOR ASYNCHRONOUS AUTOGENOUSLY PRESSURIZED IN-SPACE PROPULSION

#5
20250290468
2025-09-18

ROTODYNAMIC FLUID TRANSFER AND ENERGY EXTRACTION DEVICE WITH SHAFTLESS ROTATIONAL COUPLING AND CONSTRAINT AS USED IN ROCKET PROPULSION SYSTEMS

#6
20250264074
2025-08-21

DETONATION PRE-COMBUSTORS

#7
20250250952
2025-08-07

Rocket Engine

#8
20240229745
2024-07-11

Duplex Turbine Guide Vane Assembly

#9
20240133352
2024-04-25

Duplex Turbine Guide Vane Assembly

#10
20230383711
2023-11-30

Oblique detonation rocket engine

#11
20230332562
2023-10-19

Staged combustion liquid rocket engine cycle with the turbopump unit and preburner integrated into the structure of the combustion chamber

#12
20230323783
2023-10-12

Self-optimizing seal for turbomachinery, and associated systems and methods

#13
20230313758
2023-10-05

FEED SYSTEM FOR ROCKET ENGINE

#14
20230265815
2023-08-24

Turbo Pump Device for Rocket Engines

#15
20230258148
2023-08-17

Liquid hydrogen-liquid oxygen fueled powerplant

#16
20230167788
2023-06-01

HYDROGEN GAS TURBINE

#17
20230012171
2023-01-12

PROPELLANT INJECTOR FOR HYBRID ROCKET ENGINES

#18
20230003135
2023-01-05

Multi-mode combined cycle propulsion engine

#19
20220333554
2022-10-20

Swirl preburner system and method

#20
20220268239
2022-08-25

Liquid rocket engine tap-off power source

#21
20220205411
2022-06-30

Staged combustion liquid rocket engine cycle with the turbopump unit and preburner integrated into the structure of the combustion chamber

#22
20210324818
2021-10-21

CHILLDOWN DEVICE AND METHOD

#23
20210270210
2021-09-02

Engine producing thrust using an induction heating assembly to energize the fuel

#24
20210071620
2021-03-11

One wheel turbopump

#25
20200400102
2020-12-24

Staged combustion liquid rocket engine cycle with the turbopump unit and preburner integrated into the structure of the combustion chamber

#26
20200300197
2020-09-24

CASING FOR A PROPELLANT FEED TURBOPUMP FOR A ROCKET ENGINE

#27
20200273588
2020-08-27

Variable propellant density for passive reactivity control of nuclear thermal propulsion reactors

#28
20200248650
2020-08-06

Rocket-engine turbopump

#29
20200158049
2020-05-21

Swirl preburner system and method

#30
20200011275
2020-01-09

Methane/oxygen rocket engine with specific impulse enhancement by hot helium infusion

#31
20190301401
2019-10-03

ROCKET FUEL PUMP

#32
20190285001
2019-09-19

Pyrotechnic device

#33
20190153979
2019-05-23

Boost turbo-pump with axially fed turbine

#34
20190153955
2019-05-23

Liquid propellant rocket engine turbopump drain

#35
20190072053
2019-03-07

Extended expander cycle system

#36
20190032606
2019-01-31

Injection element having an ignition device

#37
20190032605
2019-01-31

ELECTRIC POWER-ASSISTED LIQUID-PROPELLANT ROCKET PROPULSION SYSTEM

#38
20190003423
2019-01-03

DUAL-EXPANDER SHORT-LENGTH AEROSPIKE ENGINE

#39
20180313228
2018-11-01

Turbopump machine with isolated cooling passage discharge

#40
20180230948
2018-08-16

Liquid rocket engine using booster pump driven by electric motor

#41
20170263345
2017-09-14

Passive reactivity control of nuclear thermal propulsion reactors

#42
20170254296
2017-09-07

Rocket engine bipropellant supply system including an electrolyzer

#43
20170234366
2017-08-17

Method for producing a hydrostatic fluid bearing with cells

#44
20170114753
2017-04-27

Method of regulating the pressure within a first rocket engine propellant tank

#45
20160348612
2016-12-01

MOTOR PROPELLANT LIQUID

#46
20160319772
2016-11-03

METHOD FOR CONTROLLING A PROPULSION SYSTEM

#47
20160312743
2016-10-27

Pneumatic circuit breaker based self resetting passive overspeed control valve for turbine pump assembly

#48
20160312652
2016-10-27

Passive overspeed controlled turbo pump assembly

#49
20160281641
2016-09-29

A PROPULSION ASSEMBLY AND A METHOD OF FEEDING PROPELLANTS

#50
20160177963
2016-06-23

Centrifugal pump, in particular for supplying power to rocket engines

#51
20160169240
2016-06-16

Turbopump with anti-vibration system

#52
20160131085
2016-05-12

Stored pressure driven cycle

#53
20150354504
2015-12-10

ROCKET ENGINE, ROCKET AND START METHOD OF ROCKET ENGINE

#54
20150308384
2015-10-29

PROPULSION ASSEMBLY FOR ROCKET

#55
20150288309
2015-10-08

Systems utilizing a controllable voltage AC generator system

#56
20150285187
2015-10-08

Method and a device for feeding a rocket engine

#57
20150275823
2015-10-01

Propulsion system and launch vehicle

#58
20150101333
2015-04-16

Rotational machine, such as a turbomachine, and engines and flying machines incorporating same

#59
20150030464
2015-01-29

Method for securing the operation of a turbomachine

#60
20150000755
2015-01-01

Pressurizing device and method

#61
20140325958
2014-11-06

Propulsion assembly and method

#62
20140305098
2014-10-16

Hybrid-cycle liquid propellant rocket engine

#63
20140260181
2014-09-18

Jet propulsion device and fuel supply method

#64
20140020872
2014-01-23

Aircraft/spacecraft fluid cooling system and aircraft/spacecraft fluid cooling method

#65
20130323081
2013-12-05

Turbopump

#66
20130145742
2013-06-13

Catalytically enhanced gas generator system for rocket applications

#67
20120204535
2012-08-16

AUGMENTED EXPANDER CYCLE

#68
20120198813
2012-08-09

Thrust chamber and rocket engine system

#69
20100257839
2010-10-14

Hydrocarbon-fueled rocket engine with endothermic fuel cooling

#70
20100024386
2010-02-04

Gas-generator augmented expander cycle rocket engine

#71
20090235639
2009-09-24

Rocket nozzle and control method for combustion gas flow in rocket engine

#72
20090013663
2009-01-15

METHANE ENGINE FOR ROCKET PROPULSION

#73
20080256925
2008-10-23

Compact, high performance swirl combustion rocket engine

#74
20080053064
2008-03-06

Rocket engine power cycle

#75
20080016846
2008-01-24

System and method for cooling hydrocarbon-fueled rocket engines

#76
20080000217
2008-01-03

Method and apparatus for a rocket engine power cycle

#77
20070006568
2007-01-11

Booster rocket engine using gaseous hydrocarbon in catalytically enhanced gas generator cycle

#78
18501983
2024-08-20

System and method for asynchronous autogenously pressurized in-space propulsion

#79
18150479
2023-09-26

Multiple counter-balances for rotating components

#80
18150329
2023-09-19

Axial counterbalance for rotating components

#81
17662650
2023-01-17

Axial counterbalance for rotating components

#82
17324000
2022-07-12

Liquid rocket engine tap-off power source

#83
16857609
2023-12-19

Liquid rocket engine booster engine with combustion gas fuel source