ClassID:

72938

B64G1/408 - CPC Classification

Classification description:

Cosmonautic vehicles; Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles; Arrangements or adaptations of propulsion systems Nuclear spacecraft propulsion

Recent Application in this class:
#1
20250162732
2025-05-22

PARTICLE BED FUEL ELEMENT FOR NUCLEAR THERMAL PROPULSION

#2
20250066045
2025-02-27

NUCLEAR THERMAL PROPULSION SYSTEM WITH REACTOR DIRECT DRIVE OF CRYOCOOLER TURBINE

#3
20240420859
2024-12-19

Mixed Particle Nuclear Reactions

#4
20240412882
2024-12-12

CERMET FUEL ELEMENT AND FABRICATION AND APPLICATIONS THEREOF, INCLUDING IN THERMAL PROPULSION REACTOR

#5
20240347218
2024-10-17

System and Method to Employ Centrifugal Confinement Fusion for In-Space Propulsion and Power Generation

#6
20240290509
2024-08-29

Customizable Thin Plate Fuel Form and Reactor Core Therefor

#7
20240278938
2024-08-22

Nuclear thermal propulsion system with reactor direct drive of cryocooler turbine

#8
20240127971
2024-04-18

Systems and methods for in-space fusion reactor cooling

#9
20230415926
2023-12-28

Nuclear thermal propulsion system with reactor direct drive of cryocooler turbine

#10
20230326618
2023-10-12

CARBIDE-BASED FUEL ASSEMBLY FOR THERMAL PROPULSION APPLICATIONS

#11
20230317305
2023-10-05

Carbide-based fuel assembly for thermal propulsion applications

#12
20230282373
2023-09-07

FUEL BUNDLE WITH TWISTED RIBBON FUEL RODLETS FOR NUCLEAR THERMAL PROPULSION APPLICATIONS, STRUCTURES FOR MANUFACTURE, AND METHODS OF MANUFACTURE

#13
20230230714
2023-07-20

CONTROL DRUM CONTROLLER FOR NUCLEAR REACTOR SYSTEM

#14
20230211898
2023-07-06

COMBINED AMMONIA-BASED MODERATOR AND PROPELLANT FOR NUCLEAR THERMAL PROPULSION STAGES

#15
20220375641
2022-11-24

ADJUSTING WAIT TIME BETWEEN BURN CYCLES OR MERGING BURN CYCLES

#16
20220367077
2022-11-17

Space-Based Radioisotope Production and Methods of Use

#17
20220267031
2022-08-25

NTAC augmented nuclear electric propulsion and/or nuclear thermal propulsion

#18
20220115152
2022-04-14

Carbide-based fuel assembly for thermal propulsion applications

#19
20220115151
2022-04-14

Cermet fuel element and fabrication and applications thereof, including in thermal propulsion reactor

#20
20220115149
2022-04-14

Carbide-based fuel assembly for thermal propulsion applications

#21
20220084696
2022-03-17

Customizable thin plate fuel form and reactor core therefor

#22
20220055774
2022-02-24

OPTO-MECHANIC DRIVEN LASER-BORON FUSION FOR DRIVING OF SPACECRAFTS

#23
20210304909
2021-09-30

Robust nuclear propulsion fission reactor with tri-pitch patterned core and drum absorbers

#24
20210094706
2021-04-01

Plenum plate standoff spools for separating a pair of plenum plates in a nuclear reactor

#25
20200357531
2020-11-12

Nuclear thermal propulsion nuclear reactor interface structure

#26
20200317375
2020-10-08

STEERING MECHANISM AND METHOD FOR MICRO-FUSION-POWERED AIR AND SPACE CRAFT

#27
20200299007
2020-09-24

Radioactive decay propulsion and electrical device

#28
20200273588
2020-08-27

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

#29
20200269997
2020-08-27

SINGLE-STAGE CRAFT AND METHOD FOR INTERPLANETARY SPACE TRAVEL

#30
20200231309
2020-07-23

MICRO-FUSION-POWERED AIR AND SPACE CRAFT

#31
20200148324
2020-05-14

Micro-fusion-powered unmanned craft

#32
20200130871
2020-04-30

Spacecraft-module habitats and bases

#33
20200062426
2020-02-27

Spacecraft collision-avoidance propulsion system and method

#34
20200027570
2020-01-23

In space startup method for nuclear fusion rocket engines

#35
20190355485
2019-11-21

MICRO-FUSION-ENHANCED HYBRID PROPULSION FOR HIGH-ALTITUDE AIRCRAFT AND SPACE PLANES

#36
20190315498
2019-10-17

NUCLEAR THERMAL PROPULSION ROCKET ENGINE

#37
20190168896
2019-06-06

Asteroid redirection and soft landing facilitated by cosmic ray and muon-catalyzed fusion

#38
20190108920
2019-04-11

Customizable thin plate fuel form and reactor core therefor

#39
20180273214
2018-09-27

Interplanetary spacecraft using fusion-powered thrust

#40
20180223815
2018-08-09

Injection system and method for injecting a cylindrical array of liquid jets

#41
20180170496
2018-06-21

Method of using nanofuel in a nanofuel internal engine

#42
20180134417
2018-05-17

Spacecraft landing and site-to-site transport for a planet, moon or other space body

#43
20180105292
2018-04-19

Interplanetary spacecraft using fusion-powered constant-acceleration thrust

#44
20180044041
2018-02-15

Space modular reactor for propulsion (SMR-P)

#45
20180033496
2018-02-01

SYSTEMS, METHODS, AND DEVICES FOR INERTIAL ELECTROSTATIC CONFINEMENT

#46
20170263345
2017-09-14

Passive reactivity control of nuclear thermal propulsion reactors

#47
20170183109
2017-06-29

Multi-purpose expandable complex providing maintenance, manufacturing, assemblage complex with external space dock

#48
20170129628
2017-05-11

Thermal-nucleak powered rocket using non-cryogenic propellant

#49
20170069402
2017-03-09

Nanofuel internal engine

#50
20150364220
2015-12-17

Apparatus and methods for fusion based power generation and engine thrust generation

#51
20150098543
2015-04-09

Method and apparatus to produce high specific impulse and moderate thrust from a fusion-powered rocket engine

#52
20150052886
2015-02-26

Nuclear powered rotary internal engine apparatus

#53
20140023170
2014-01-23

Apparatus, systems and methods for fusion based power generation and engine thrust generation

#54
20110180670
2011-07-28

In orbit space transportation & recovery system

#55
20100176248
2010-07-15

SPACECRAFT PROPULSION SYSTEM WITH GYROSCOPIC MECHANISM

#56
20090242704
2009-10-01

In orbit space transportation and recovery system

#57
20090000268
2009-01-01

THERMONUCLEAR PLASMA REACTOR FOR ROCKET THRUST AND ELECTRICAL GENERATION

#58
20080296436
2008-12-04

In orbit space transportation and recovery system

#59
20080029651
2008-02-07

Orbit space transportation & recovery system

#60
20080011903
2008-01-17

In orbit space transportation & recovery system

#61
20070153962
2007-07-05

In orbit space transportation and recovery system

#62
20070153961
2007-07-05

In orbit space transportation and recovery system

#63
20070153960
2007-07-05

In orbit space transportation and recovery system

#64
20070114334
2007-05-24

Orbit space transportation and recovery system

#65
20070108349
2007-05-17

In orbit space transportation and recovery system

#66
20070040067
2007-02-22

Orbit space transportation and recovery system

#67
18233554
2025-09-09

Radial in-flow particle bed nuclear rocket engine and method

#68
17820512
2023-12-19

Reactor rocket engine

#69
16238329
2019-09-17

Nuclear rocket engine with pebble fuel source

#70
16238316
2019-09-17

Fuel retention reactor for nuclear rocket engine

#71
14851665
2016-05-24

Nuclear thermal propulsion rocket engine

#72
14692349
2015-11-10

Nuclear thermal propulsion rocket engine

#73
13645816
2015-06-30

Laser-powered propulsion system