ClassID:

140418

F02K9/28 - CPC Classification

Classification description:

Rocket-engine plants, i.e. plants carrying both fuel and oxidant therefor; Control thereof using solid propellants having two or more propellant charges with the propulsion gases exhausting through a common nozzle

Recent Application in this class:
#1
20260138757
2026-05-21

ROCKET MOTOR

#2
20260117725
2026-04-30

3D-PRINTED ROCKET FUEL GRAINS, ROCKET ENGINES AND AN ADDITIVE MANUFACTURING PROCESS

#3
20250012237
2025-01-09

THRUST VECTOR CONTROL FOR HYBRID PROPELLANTS ROCKET ENGINE WITH EMBEDDED FLUID INJECTION PORTS

#4
20240150047
2024-05-09

ROCKET MOTOR

#5
20240125290
2024-04-18

System and method of grain ignition and inhibitor release using phase alloy films

#6
20240117782
2024-04-11

Modulating internal ballistics in a 3D-printed rocket motor and an additive manufacturing process

#7
20230265816
2023-08-24

Vortex hybrid rocket motor

#8
20230166851
2023-06-01

Multi-stage propellant systems, assemblies, and methods

#9
20230160359
2023-05-25

Reaction control vortex thruster system

#10
20220170432
2022-06-02

Multi-pulse solid rocket motor ignition method

#11
20220120241
2022-04-21

Multi-pulse propulsion system with passive initiation

#12
20220042479
2022-02-10

Hybrid Rocket Motor

#13
20210381468
2021-12-09

Multi-pulse rocket motor with flight termination destruct charge

#14
20210293205
2021-09-23

Multi-pulse gas generator device and igniter with varied flow rates

#15
20210148307
2021-05-20

Rocket engine with integrated oxidizer catalyst in manifold and injector assembly

#16
20200400103
2020-12-24

Reaction control vortex thruster system

#17
20200284219
2020-09-10

Generation of a Pulsed Jet by Jet Vectoring Through a Nozzle with Multiple Outlets

#18
20200240365
2020-07-30

Thrust vector control for hybrid propellants rocket engine with embedded fluid injection ports

#19
20200240363
2020-07-30

Rocket engine's thrust chamber assembly

#20
20200116106
2020-04-16

Vortex hybrid rocket motor

#21
20200116105
2020-04-16

COMMON BULKHEAD FOR A PRESSURE VESSEL

#22
20200040849
2020-02-06

Integral variable performance propellant grain

#23
20200025152
2020-01-23

2-pulse gas generator and method of measuring propellant combustion surface position

#24
20180334996
2018-11-22

Hybrid Rocket Motor

#25
20180245543
2018-08-30

Multi-Stage Solid Rocket Motor

#26
20180128207
2018-05-10

Electrically operated propellant for solid rocket motor thrust management

#27
20180094606
2018-04-05

Rocket motor with concentric propellant structures for shock mitigation

#28
20170284339
2017-10-05

THRUSTER WITH SEGMENTED PROPELLANT

#29
20170253536
2017-09-07

Solid propellant with integral electrodes, and method

#30
20170097213
2017-04-06

Electrically operated pulse initiators and ignition

#31
20160115905
2016-04-28

Two-pulse gas generator and operation method thereof

#32
20150361923
2015-12-17

Rocket motors and their use

#33
20150315998
2015-11-05

Generation of a pulsed jet by jet vectoring through a nozzle with multiple outlets

#34
20150047316
2015-02-19

Three-pulse gas generator and operation method thereof

#35
20130111874
2013-05-09

Pulse rocket motor including a dividing sheet for separating the first grain propellant from the second grain propellant

#36
20130014491
2013-01-17

Combustion gas supply control device

#37
20120311993
2012-12-13

Multi-pulse rocket motor and pulse unit thereof

#38
20120036831
2012-02-16

Pellet-loaded multiple impulse rocket motor

#39
20110203256
2011-08-25

Motor with solid fuel installed within combustion chamber and vortex generator installed on inner wall of combustion chamber

#40
20110167794
2011-07-14

Multi-functional pulse-divided rocket

#41
20100237165
2010-09-23

Generation of a pulsed jet by jet vectoring through a nozzle with multiple outlets

#42
20100218481
2010-09-02

Two-pulse rocket motor

#43
20100011742
2010-01-21

Rocket Motor Containing Multiple Pellet Cells

#44
20090320443
2009-12-31

Propulsion system, opposing grains rocket engine, and method for controlling the burn rate of solid propellant grains

#45
20090217642
2009-09-03

Radial flow rapid prototyping rocket motors

#46
20090212163
2009-08-27

Propulsion enhancement arrangement for rocket

#47
20090211226
2009-08-27

Hybrid rocket motor with annular, concentric solid fuel elements

#48
20050187516
2005-08-25

Intradermal and subcutaneous injection device

#49
20050154347
2005-07-14

Needle-free Injection device

#50
20050120703
2005-06-09

Steerable, intermittently operable rocket propulsion system

#51
17325558
2024-10-15

3D-printed rocket fuel grains, rocket engines and an additive manufacturing process

#52
17325538
2025-08-26

Continuous modification in a 3D-printed rocket engine and an additive manufacturing process

#53
16941642
2024-01-02

System for multiple burns from a rocket motor

#54
16530315
2022-06-07

Multi-pulse rocket propulsion motor

#55
15151858
2017-05-30

Rocket structure

#56
13355949
2017-08-08

Selectable ramjet propulsion system

#57
10376297
2017-10-10

Rocket motors having controlled autoignition propellant systems

#58
10200597
2017-09-12

Controlled autoignition propellant systems