ClassID:

140432

F02K9/50 - 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 pressurised fluid to pressurise the propellants

Recent Application in this class:
#1
20260078719
2026-03-19

Rocket Motor and Components Thereof

#2
20260078718
2026-03-19

HYBRID SOLAR THERMAL AND CHEMICAL VEHICLE CONFIGURATIONS FOR SPACE MINING APPLICATIONS

#3
20260054861
2026-02-26

SYSTEM AND METHOD FOR ASYNCHRONOUS AUTOGENOUSLY PRESSURIZED IN-SPACE PROPULSION

#4
20260054858
2026-02-26

REUSABLE SPACE VEHICLE FOR LONG-DWELL PAYLOAD HOSTING, ORBITAL MANEUVERS, AND DOWNMASS OPERATIONS, AND RELATED METHOD

#5
20260002496
2026-01-01

CATALYTIC DECOMPOSITION REACTORS

#6
20250257701
2025-08-14

SYSTEMS AND METHODS FOR ENHANCED PRESSURIZATION

#7
20250066045
2025-02-27

NUCLEAR THERMAL PROPULSION SYSTEM WITH REACTOR DIRECT DRIVE OF CRYOCOOLER TURBINE

#8
20240426261
2024-12-26

A PUMPING APPARATUS

#9
20240327039
2024-10-03

RESERVOIR ASSEMBLY FOR A SPACECRAFT

#10
20240278938
2024-08-22

Nuclear thermal propulsion system with reactor direct drive of cryocooler turbine

#11
20240125288
2024-04-18

ROCKET PROPULSION SYSTEM

#12
20230415926
2023-12-28

Nuclear thermal propulsion system with reactor direct drive of cryocooler turbine

#13
20230332562
2023-10-19

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

#14
20230323839
2023-10-12

Systems and Methods for Pressurizing a Propellant Tank With Electrolyzed Products

#15
20230271729
2023-08-31

LIQUID-DRIVEN PROPULSION DEVICES

#16
20230204004
2023-06-29

Integrated propulsion system for hybrid rockets

#17
20230193857
2023-06-22

CATALYTIC DECOMPOSITION REACTORS

#18
20220381201
2022-12-01

Hybrid propulsion unit for space vehicle

#19
20220355954
2022-11-10

Active on orbit fluid propellant management and refueling systems and methods

#20
20220290635
2022-09-15

Hybrid solar thermal and chemical vehicle configurations for space mining applications

#21
20220228542
2022-07-21

PROPULSION ASSEMBLY FOR A ROCKET

#22
20220205411
2022-06-30

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

#23
20220112867
2022-04-14

Rocket motor and components thereof

#24
20220003188
2022-01-06

Hybrid rocket engine using electric motor-driven oxidizer pump

#25
20210310444
2021-10-07

Three-dimensional monolithic diaphragm tank

#26
20210277847
2021-09-09

Hybrid rocket

#27
20200400102
2020-12-24

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

#28
20200386190
2020-12-10

Supply system for supplying a rocket engine

#29
20200326730
2020-10-15

Distributed fuel modules with hydraulic flow circuit breakers and gaseous flow circuit breakers

#30
20200025386
2020-01-23

Lean burn fuel injector

#31
20200018261
2020-01-16

Three-dimensional monolithic diaphragm tank

#32
20200011275
2020-01-09

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

#33
20190033152
2019-01-31

Abnormality determination device and abnormality determination method

#34
20190032606
2019-01-31

Injection element having an ignition device

#35
20190011085
2019-01-10

Determining a gas volume in a tank device

#36
20180372027
2018-12-27

PROJECTILE FUEL SYSTEM

#37
20180201394
2018-07-19

SPACE FLIGHT BODY WITH A DRIVE UNIT AND WITH A FUEL MATERIAL GENERATING DEVICE FOR A SPACE FLIGHT BODY

#38
20180058378
2018-03-01

PRESSURIZATION DEVICE FOR A LIQUID-OXYGEN TANK OF A ROCKET ENGINE

#39
20180030928
2018-02-01

Capacitive system for correcting the pogo effect with semi-centered discharge tube capable of being positioned in a bend

#40
20180030860
2018-02-01

DEVICE FOR THE TRANSMISSION OF KINETIC ENERGY FROM A WORKING FLUID TO A RECEIVING FLUID

#41
20170335798
2017-11-23

IGNITION METHOD FOR LIQUID PROPELLANT ENGINE

#42
20170260929
2017-09-14

Device and locking of a fueling device

#43
20170254296
2017-09-07

Rocket engine bipropellant supply system including an electrolyzer

#44
20170248101
2017-08-31

Valve controller for pressure stabilization

#45
20170226965
2017-08-10

Method for suppressing the pogo effect

#46
20170167442
2017-06-15

Device, system, and method for pressurizing and supplying fluid

#47
20170114753
2017-04-27

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

#48
20170073089
2017-03-16

Vapor jet system enabling jetting for many seconds using multiple kinds of mutually insoluble liquid gases as fuel

#49
20170058836
2017-03-02

FEED SYSTEM AND A METHOD OF SUPPRESSING THE POGO EFFECT

#50
20160333826
2016-11-17

Post-Launch CO2 Gas Production System

#51
20160290284
2016-10-06

A DEVICE FOR FEEDING A ROCKET ENGINE PROPULSION CHAMBER WITH PROPELLANT

#52
20160265477
2016-09-15

Valve controller for pressure stabilization

#53
20160177874
2016-06-23

Device for pressurizing propellant tanks of a rocket engine

#54
20160169159
2016-06-16

Device for pressurizing a propellant tank of a rocket engine

#55
20160160801
2016-06-09

Premixed liquid propellant propulsion system and method with anti-flashback quenching liquid injector

#56
20160131085
2016-05-12

Stored pressure driven cycle

#57
20160016677
2016-01-21

Satellite propulsion device allowing passive elimination of pressurizing gas

#58
20150285187
2015-10-08

Method and a device for feeding a rocket engine

#59
20150101337
2015-04-16

NOZZLE ARRANGEMENT FOR AN ENGINE

#60
20150000755
2015-01-01

Pressurizing device and method

#61
20140290212
2014-10-02

Reactants sprayed into plasma flow for rocket propulsion

#62
20140245717
2014-09-04

Device for heating a fluid

#63
20140203148
2014-07-24

Cryogenic thruster assembly using regenerative heating from main and settling thrusters

#64
20140174054
2014-06-26

Feed system and a method of suppressing the POGO effect

#65
20130019586
2013-01-24

PROPULSION METHOD AND DEVICE COMPRISING A LIQUID OXIDANT AND A SOLID COMPOUND

#66
20120269633
2012-10-25

Closed gas generator and micro power unit including the same

#67
20120198818
2012-08-09

Augmentation of a monopropellant propulsion system

#68
20120144797
2012-06-14

Rocket engine with cryogenic propellants

#69
20120131903
2012-05-31

Rocket engine with cryogenic propellants

#70
20120047872
2012-03-01

Hydrogen gas generator for jet engines

#71
20110088368
2011-04-21

Thermally-integrated fluid storage and pressurization system

#72
20100269487
2010-10-28

Thermally-integrated fluid storage and pressurization system

#73
20100115917
2010-05-13

Method and device for supplying a space propulsion engine with liquid cryogenic propellants

#74
20100011850
2010-01-21

Method and apparatus for measuring the amount of fuel aboard a spacecraft

#75
20090206111
2009-08-20

Tank having a piston pressurized by hot gas

#76
20090120060
2009-05-14

Catalytically activated transient decomposition propulsion system

#77
20080256924
2008-10-23

Ultra-compact, high performance aerovortical rocket thruster

#78
20080142639
2008-06-19

Method for detecting complete draining of a propellant tank and for propellant management on board a satellite

#79
20070031303
2007-02-08

Thermal catalytic ignition system for airborne applications

#80
20070006568
2007-01-11

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

#81
20060145022
2006-07-06

Propellant tank baffle system

#82
20050022500
2005-02-03

Rocket engine passivation system

#83
18774773
2025-05-27

Integrated vehicle fluids with hot gas line and cold gas line merging to increase enthalpy

#84
18501983
2024-08-20

System and method for asynchronous autogenously pressurized in-space propulsion

#85
18133134
2024-05-14

Integrated vehicle fluids

#86
18133124
2024-04-30

Integrated vehicle fluids for upper stage launch vehicle with internal combustion engine

#87
18133111
2024-07-16

Integrated vehicle fluids

#88
17683014
2023-12-19

Integrated vehicle fluids

#89
16871144
2022-11-15

On orbit fluid propellant dispensing systems and methods

#90
16733518
2022-05-31

Chemical and cold gas propellant systems and methods

#91
16209213
2019-12-03

Thermoelectric rocket propellant tank pressurization system

#92
16111623
2022-03-01

Integrated vehicle fluids

#93
15382791
2019-12-03

Tridyne ignition and pressurization system for hypersonic vehicles