ClassID:

160030

F25J1/005 - CPC Classification

Classification description:

Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by expansion of a gaseous refrigerant stream with extraction of work

Recent Application in this class:
#1
20260092734
2026-04-02

Method of Hydrogen Liquefaction Using Optimized Claude Refrigeration Cycles

#2
20250257939
2025-08-14

SYSTEMS AND METHODS FOR LNG REFRIGERATION AND LIQUEFACTION

#3
20250251187
2025-08-07

FACILITY AND METHOD FOR HYDROGEN REFRIGERATION

#4
20250244075
2025-07-31

HYDROGEN COOLING

#5
20250207851
2025-06-26

METHOD AND APPARATUS FOR COOLING HYDROGEN

#6
20250189216
2025-06-12

METHOD AND SYSTEM FOR PROVIDING GASEOUS COMPRESSED OXYGEN

#7
20250180283
2025-06-05

GAS TREATMENT SYSTEM AND SHIP INCLUDING SAME

#8
20250146745
2025-05-08

LNG EXERGY OPTIMIZATION FOR SBCC

#9
20250060154
2025-02-20

System and Method for Turndown of a Hydrogen Precooling and/or Hydrogen Liquefaction System

#10
20240393041
2024-11-28

INSTALLATION AND METHOD FOR THE LIQUEFACTION OF HYDROGEN

#11
20240384927
2024-11-21

SYSTEM AND METHOD FOR RELIQUEFACTION OF BOIL-OFF GAS OF SHIP AND SYSTEM AND METHOD FOR TREATING OFFGAS OF RELIQUEFACTION APPARATUS

#12
20240384926
2024-11-21

FACILITY AND METHOD FOR THE LIQUEFACTION OF HYDROGEN

#13
20240369293
2024-11-07

APPARATUS AND PROCESS FOR OXYGEN RECOVERY

#14
20240361071
2024-10-31

SYSTEMS AND METHODS FOR HYDROGEN LIQUEFACTION

#15
20240318906
2024-09-26

HYDROGEN LIQUEFACTION SYSTEM AND HYDROGEN LIQUEFACTION METHOD

#16
20240310116
2024-09-19

DEVICE AND METHOD FOR LIQUEFYING A FLUID SUCH AS HYDROGEN AND/OR HELIUM

#17
20240288218
2024-08-29

METHOD FOR PRODUCTION AND SUPPLY OF A DENSIFIED LIQUID OXYGEN PRODUCT FOR SPACE VEHICLE APPLICATIONS

#18
20240255219
2024-08-01

PROCESS FOR COOLING A GAS BY MEANS OF A REFRIGERATION CYCLE

#19
20240255216
2024-08-01

METHOD AND PLANT FOR HYDROGEN LIQUEFACTION

#20
20240219113
2024-07-04

METHOD AND SYSTEM FOR AVOIDING FREEZING OF AT LEAST ONE COMPONENT OF A CRYOGENIC FLUID INSIDE A CRYOGENIC HEAT EXCHANGER

#21
20240200868
2024-06-20

DEVICE AND METHOD FOR PRE-COOLING A STREAM OF A TARGET FLUID TO A TEMPERATURE LESS THAN OR EQUAL TO 90 K

#22
20240175627
2024-05-30

HYDROGEN LIQUEFACTION SYSTEM WITHOUT PRE-COOLING AND INTERGRATED LOSSLESS LIQUID HYDROGEN STORAGE SYSTEM

#23
20240151464
2024-05-09

DEVICE AND METHOD FOR LIQUEFYING A FLUID SUCH AS HYDROGEN AND/OR HELIUM

#24
20240142170
2024-05-02

DEVICE AND METHOD FOR LIQUEFYING A FLUID SUCH AS HYDROGEN AND/OR HELIUM

#25
20240125547
2024-04-18

DEVICE AND METHOD FOR LIQUEFYING A FLUID SUCH AS HYDROGEN AND/OR HELIUM

#26
20240125545
2024-04-18

DEVICE AND METHOD FOR REFRIGERATING OR LIQUEFYING A FLUID

#27
20240118024
2024-04-11

DEVICE AND METHOD FOR REFRIGERATION OR LIQUEFACTION OF A FLUID

#28
20240093937
2024-03-21

LIQUEFIED HYDROGEN PRODUCTION DEVICE

#29
20230408189
2023-12-21

PLANT AND METHOD FOR PRODUCING HYDROGEN AT CRYOGENIC TEMPERATURE

#30
20230408187
2023-12-21

METHOD FOR PRODUCING LIQUEFIED NATURAL GAS FROM NATURAL GAS, AND CORRESPONDING PLANT

#31
20230392859
2023-12-07

Cryogenic Gas Cooling System and Method

#32
20230375259
2023-11-23

FACILITY AND METHOD FOR REFRIGERATION AND/OR LIQUEFACTION OF A FLUID

#33
20230341180
2023-10-26

METHOD AND DEVICE FOR MANUFACTURING LIQUID HYDROGEN BY OFFSHORE OFF-GRID SUPERCONDUCTING WIND TURBINE

#34
20230332833
2023-10-19

Process for Producing Liquefied Hydrogen

#35
20230251031
2023-08-10

COLD ENERGY RECOVERY FACILITY AND MARINE VESSEL

#36
20230194160
2023-06-22

LIQUEFIED GAS STORAGE FACILITY

#37
20230160632
2023-05-25

LIQUEFACTION AND SUBCOOLING SYSTEM AND METHOD

#38
20230136307
2023-05-04

Managing make-up gas composition variation for a high pressure expander process

#39
20230119575
2023-04-20

Facility and method for hydrogen refrigeration

#40
20230114229
2023-04-13

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS

#41
20230003443
2023-01-05

Arctic cascade method for natural gas liquefaction in a high-pressure cycle with pre-cooling by ethane and sub-cooling by nitrogen, and a plant for its implementation

#42
20220333859
2022-10-20

Refrigeration device and system

#43
20220333853
2022-10-20

System and method to produce liquefied natural gas using a three pinion integral gear machine

#44
20220333852
2022-10-20

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS USING TWO DISTINCT REFRIGERATION CYCLES WITH AN INTEGRAL GEAR MACHINE

#45
20220333828
2022-10-20

Refrigeration device and facility

#46
20220307731
2022-09-29

SYSTEM, METHOD AND APPARATUS FOR THE REGENERATION OF NITROGEN ENERGY WITHIN A CLOSED LOOP CRYOGENIC SYSTEM

#47
20220275999
2022-09-01

REFRIGERATION AND/OR LIQUEFACTION METHOD, DEVICE AND SYSTEM

#48
20220268516
2022-08-25

COOLING AND/OR LIQUEFYING SYSTEM AND METHOD

#49
20220260310
2022-08-18

Cooling and/or liquefying method and system

#50
20220221220
2022-07-14

Methods and systems for hydrogen liquefaction

#51
20220170695
2022-06-02

METHOD AND SYSTEM FOR CONDENSING A GAS

#52
20220128299
2022-04-28

Liquefaction of production gas

#53
20220099364
2022-03-31

OFFSHORE LIQUEFACTION PROCESS WITHOUT COMPRESSION

#54
20220082210
2022-03-17

METHOD AND FILLING DEVICE FOR FILLING A TRANSPORT TANK

#55
20220074652
2022-03-10

Natural gas liquefaction by a high pressure expansion process

#56
20220003496
2022-01-06

System and method of de-bottlenecking LNG trains

#57
20210381756
2021-12-09

COOLING METHOD FOR LIQUEFYING A FEED GAS

#58
20210348838
2021-11-11

SYSTEM AND METHOD FOR NATURAL GAS AND NITROGEN LIQUEFACTION WITH DIRECT DRIVE MACHINES FOR TURBINES AND BOOSTERS

#59
20210341221
2021-11-04

CONFIGURATIONS AND METHODS FOR SMALL SCALE LNG PRODUCTION

#60
20210164729
2021-06-03

Apparatus and process for liquefying gases

#61
20210140707
2021-05-13

Arctic cascade method for natural gas liquefaction in a high-pressure cycle with pre-cooling by ethane and sub-cooling by nitrogen, and a plant for its implementation

#62
20210088276
2021-03-25

Method for producing pure nitrogen from a natural gas stream containing nitrogen

#63
20210063083
2021-03-04

Liquefaction of Production Gas

#64
20200400372
2020-12-24

Heat-of-compression recycle system, and sub-systems thereof

#65
20200386473
2020-12-10

APPARATUS, SYSTEM AND METHOD FOR RELIQUEFACTION OF PREVIOUSLY REGASIFIED LNG

#66
20200333050
2020-10-22

Refrigeration cycle for liquid oxygen densification

#67
20200292211
2020-09-17

Gas expansion system

#68
20200253658
2020-08-13

N2O liquefaction system with subcooling heat exchanger for medical device

#69
20200232704
2020-07-23

Systems and methods for using multiple cryogenic hydraulic turbines

#70
20200182542
2020-06-11

Staged cryogenic storage type supercritical compressed air energy storage system and method

#71
20200124345
2020-04-23

Large scale coastal liquefaction

#72
20200064061
2020-02-27

Managing make-up gas composition variation for a high pressure expander process

#73
20200003070
2020-01-02

Raw material gas liquefying device and method of controlling this raw material gas liquefying device

#74
20190350635
2019-11-21

N2O liquefaction system with subcooling heat exchanger for medical device

#75
20190310013
2019-10-10

Method for liquefying natural gas and for recovering possible liquids from the natural gas, comprising two refrigerant cycles semi-open to the natural gas and a refrigerant cycle closed to the refrigerant gas

#76
20190285340
2019-09-19

Method and system for liquefaction of natural gas using liquid nitrogen

#77
20190285339
2019-09-19

Raw material gas liquefying device and method of controlling this raw material gas liquefying device

#78
20190204006
2019-07-04

Systems and methods for LNG refrigeration and liquefaction

#79
20190195554
2019-06-27

System and method of de-bottlenecking LNG trains

#80
20190195536
2019-06-27

Fluid cooling apparatus

#81
20190137170
2019-05-09

System and method for producing liquefied natural gas

#82
20190120548
2019-04-25

Natural Gas Liquefaction by a High Pressure Expansion Process using Multiple Turboexpander Compressors

#83
20190063824
2019-02-28

Production equipment and production method of liquefied hydrogen and liquefied natural gas

#84
20190041124
2019-02-07

Integrated expander-motor compressor

#85
20180372404
2018-12-27

Method for liquefying natural gas and nitrogen

#86
20180347897
2018-12-06

Large-scale hydrogen liquefaction by means of a high pressure hydrogen refrigeration cycle combined to a novel single mixed-refrigerant precooling

#87
20180335256
2018-11-22

Apparatus and process for liquefying gases

#88
20180320957
2018-11-08

Low-temperature mixed-refrigerant for hydrogen precooling in large scale

#89
20180313604
2018-11-01

Hydrogen-neon mixture refrigeration cycle for large-scale hydrogen cooling and liquefaction

#90
20180292128
2018-10-11

Liquid natural gas liquefier utilizing mechanical and liquid nitrogen refrigeration

#91
20180202690
2018-07-19

Refrigeration cycle for liquid oxygen densification

#92
20180172344
2018-06-21

Liquefaction of Natural Gas

#93
20180149424
2018-05-31

Liquefied Natural Gas Production

#94
20180087809
2018-03-29

Refrigerator and operation method for refrigerator

#95
20180038643
2018-02-08

Method for the integration of liquefied natural gas and syngas production

#96
20180038642
2018-02-08

PROCESS INTEGRATION OF A GAS PROCESSING UNIT WITH LIQUEFACTION UNIT

#97
20180038639
2018-02-08

ROBUST RECOVERY OF NATURAL GAS LETDOWN ENERGY FOR SMALL SCALE LIQUEFIED NATURAL GAS PRODUCTION

#98
20180038638
2018-02-08

Integration of industrial gas site with liquid hydrogen production

#99
20180003429
2018-01-04

Configurations and methods for small scale LNG production

#100
20170356677
2017-12-14

System, method and apparatus for the regeneration of nitrogen energy within a closed loop cryogenic system

#101
20170336138
2017-11-23

INTEGRATED PROCESS FOR NGL (NATURAL GAS LIQUIDS RECOVERY) AND LNG (LIQUEFACTION OF NATURAL GAS)

#102
20170292783
2017-10-12

Method of operating natural gas liquefaction facility

#103
20170167785
2017-06-15

Expander-Based LNG Production Processes Enhanced With Liquid Nitrogen

#104
20170131027
2017-05-11

Systems and Methods for LNG Refrigeration and Liquefaction

#105
20170003072
2017-01-05

Systems and methods for using multiple cryogenic hydraulic turbines

#106
20170000544
2017-01-05

N2O liquefaction system with subcooling heat exchanger for medical device

#107
20160313057
2016-10-27

Integrated methane refrigeration system for liquefying natural gas

#108
20160200446
2016-07-14

On-board aircraft nitrogen enriched air and cooling fluid generation system and method

#109
20160138861
2016-05-19

System and method for liquefied natural gas production

#110
20160131115
2016-05-12

Systems and methods of utilizing axial flow expanders

#111
20160054053
2016-02-25

Process for cooling a hydrocarbon-rich fraction

#112
20160047597
2016-02-18

Method and apparatus in a cryogenic liquefaction process

#113
20150330574
2015-11-19

Method and apparatus for reliquefying natural gas

#114
20150308734
2015-10-29

Liquefaction of a hydrocarbon-rich fraction

#115
20150253073
2015-09-10

RE-LIQUEFYING METHOD FOR STORED LIQUID

#116
20150153100
2015-06-04

SYSTEM AND METHOD FOR HYBRID REFRIGERATION GAS LIQUEFACTION

#117
20140305160
2014-10-16

System and process for natural gas liquefaction

#118
20140250911
2014-09-11

Power generation and LNG production

#119
20140245780
2014-09-04

Multi nitrogen expansion process for LNG production

#120
20140190205
2014-07-10

Method for liquefying natural gas with a triple closed circuit of coolant gas

#121
20140182331
2014-07-03

Integrated process for NGL (natural gas liquids recovery) and LNG (liquefaction of natural gas)

#122
20140165587
2014-06-19

System for converting gaseous fuel into liquid fuel

#123
20140116084
2014-05-01

Method for liquefying natural gas with a mixture of coolant gas

#124
20140069931
2014-03-13

Liquefied natural gas storage container and method for manufacturing the same

#125
20140053598
2014-02-27

Liquefier system

#126
20130340475
2013-12-26

Natural gas liquefaction employing independent refrigerant path

#127
20130269386
2013-10-17

Natural Gas Liquefaction With Feed Water Removal

#128
20130192297
2013-08-01

Configurations and methods for small scale LNG production

#129
20130174603
2013-07-11

Liquefaction method and system

#130
20130091869
2013-04-18

Integral compressor-expander

#131
20130061607
2013-03-14

COOLING SYSTEM

#132
20120289407
2012-11-15

Superconducting system for enhanced natural gas production

#133
20120186296
2012-07-26

PROCESS AND APPARATUS FOR SWEETENING AND LIQUEFYING A GAS STREAM

#134
20120079849
2012-04-05

REMOVAL OF HYDROGEN

#135
20120060553
2012-03-15

NATURAL GAS LIQUEFACTION

#136
20120047943
2012-03-01

Process for natural gas liquefaction

#137
20120047942
2012-03-01

METHOD, SYSTEM, AND PRODUCTION AND STORAGE FACILITY FOR OFFSHORE LPG and LNG PROCESSING OF ASSOCIATED GASES

#138
20120039724
2012-02-16

Methods and devices used for automatically controlling speed of an expander

#139
20120037254
2012-02-16

Methods and devices used for automatically controlling speed of an expander

#140
20110239701
2011-10-06

METHOD OF REJECTING NITROGEN FROM A HYDROCARBON STREAM TO PROVIDE A FUEL GAS STREAM AND AN APPARATUS THEREFOR

#141
20110226009
2011-09-22

Process for producing liquid and gaseous nitrogen streams, a gaseous stream which is rich in helium and a denitrided stream of hydrocarbons and associated installation

#142
20110209497
2011-09-01

System of carbon capture and sequestration

#143
20110209496
2011-09-01

SYSTEM FOR COMBINED CYCLE MECHANICAL DRIVE IN CRYOGENIC LIQUEFACTION PROCESSES

#144
20110203312
2011-08-25

Method and system for optimized LNG production

#145
20110146341
2011-06-23

GAS SUPPLY SYSTEM FOR GAS ENGINES

#146
20110113825
2011-05-19

DUAL NITROGEN EXPANSION PROCESS

#147
20110094263
2011-04-28

Methods of natural gas liquefaction and natural gas liquefaction plants utilizing multiple and varying gas streams

#148
20110056238
2011-03-10

Methods and configurations of boil-off gas handling in LNG regasification terminals

#149
20110036121
2011-02-17

Refrigerant composition control

#150
20110030332
2011-02-10

System and method for liquid air production, power storage and power release

#151
20110000256
2011-01-06

System and method for liquid air production, power storage and power release

#152
20100319361
2010-12-23

Method of producing a gasified hydrocarbon stream; method of liquefying a gaseous hydrocarbon stream; and a cyclic process

#153
20100275616
2010-11-04

CRYOGENIC REFRIGERATOR AND CONTROL METHOD THEREFOR

#154
20100272634
2010-10-28

Hydrogen liquefaction method and liquefier

#155
20100263405
2010-10-21

Cryogenic Refrigeration Method And Device

#156
20100236286
2010-09-23

Method and system for regulation of cooling capacity of a cooling system based on a gas expansion process

#157
20100186445
2010-07-29

Natural gas liquefaction processes with feed gas refrigerant cooling loops

#158
20100175862
2010-07-15

BRAZED ALUMINUM HEAT EXCHANGER WITH SPLIT CORE ARRANGEMENT

#159
20100175425
2010-07-15

METHODS AND APPARATUS FOR LIQUEFACTION OF NATURAL GAS AND PRODUCTS THEREFROM

#160
20100175424
2010-07-15

METHODS AND APPARATUS FOR LIQUEFACTION OF NATURAL GAS AND PRODUCTS THEREFROM

#161
20100175423
2010-07-15

METHODS AND APPARATUS FOR LIQUEFACTION OF NATURAL GAS AND PRODUCTS THEREFROM

#162
20100154470
2010-06-24

Method and system for producing liquefied natural gas (LNG)

#163
20100139316
2010-06-10

Operating system of liquefied natural gas ship for subcooling and liquefying boil-off gas

#164
20100132405
2010-06-03

Method and system for producing LNG

#165
20100126214
2010-05-27

Process for the production of a subcooled liquefied natural gas stream from a natural gas feed stream, and associated installation

#166
20100122551
2010-05-20

Liquefaction method and system

#167
20100107684
2010-05-06

Natural gas liquefaction process

#168
20100084256
2010-04-08

System and method of carbon capture and sequestration

#169
20100024475
2010-02-04

Natural gas liquefaction system with turbine expander and liquefaction method thereof

#170
20100024474
2010-02-04

Method and apparatus for cooling a hydrocarbon stream

#171
20100000253
2010-01-07

METHOD AND APPARATUS FOR THE RELIQUEFACTION OF A VAPOUR

#172
20090293503
2009-12-03

System and method for liquid air production, power storage and power release

#173
20090293502
2009-12-03

System and method for liquid air production, power storage and power release

#174
20090232663
2009-09-17

Compressor-expander set critical speed avoidance

#175
20090217701
2009-09-03

Natural Gas Liquefaction Process for Ling

#176
20090158774
2009-06-25

Equipment and process for liquefaction of LNG boiloff gas

#177
20090158773
2009-06-25

Equipment and process for liquefaction of LNG boiloff gas

#178
20090113929
2009-05-07

METHOD AND APPARATUS FOR PRE-HEATING LNG BOIL-OFF GAS TO AMBIENT TEMPERATURE PRIOR TO COMPRESSION IN A RELIQUEFACTION SYSTEM

#179
20090100844
2009-04-23

Apparatus and method for controlling temperature in a boil-off gas

#180
20080202158
2008-08-28

System And Method For Cooling A Bog Stream

#181
20080184722
2008-08-07

METHOD AND APPARATUS FOR A REFRIGERATION CIRCUIT

#182
20080163645
2008-07-10

NATURAL GAS PROCESSING METHOD

#183
20080141711
2008-06-19

Hybrid cycle liquefaction of natural gas with propane pre-cooling

#184
20080127673
2008-06-05

Lng Transportation Vessel and Method For Transporting Hydrocarbons

#185
20080120993
2008-05-29

Operating system of liquefied natural gas ship for sub-cooling and liquefying boil-off gas

#186
20070256450
2007-11-08

Equipment and process for liquefaction of LNG boiloff gas

#187
20070251266
2007-11-01

Cryogenic liquefying/refrigerating method and system

#188
20060248921
2006-11-09

Landfill gas purification and liquefaction process

#189
20060225461
2006-10-12

Process for sub-cooling an LNG stream obtained by cooling by means of a first refrigeration cycle, and associated installation

#190
20060213222
2006-09-28

Compact, modular method and apparatus for liquefying natural gas

#191
20060156758
2006-07-20

Operating system of liquefied natural gas ship for sub-cooling and liquefying boil-off gas

#192
20050210914
2005-09-29

Process and apparatus for liquefying hydrogen

#193
20050126219
2005-06-16

Refrigeration compression system with multiple inlet streams

#194
20050056051
2005-03-17

Hybrid gas liquefaction cycle with multiple expanders

#195
17558524
2025-12-09

Apparatus and process for liquefying gases