ClassID:

160521

F25J2270/16 - CPC Classification

Classification description:

Refrigeration techniques used; External refrigeration with work-producing gas expansion loop with mutliple gas expansion loops of the same refrigerant

Recent Application in this class:
#1
20250257939
2025-08-14

SYSTEMS AND METHODS FOR LNG REFRIGERATION AND LIQUEFACTION

#2
20250060154
2025-02-20

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

#3
20240384926
2024-11-21

FACILITY AND METHOD FOR THE LIQUEFACTION OF HYDROGEN

#4
20240310116
2024-09-19

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

#5
20240288218
2024-08-29

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

#6
20240255216
2024-08-01

METHOD AND PLANT FOR HYDROGEN LIQUEFACTION

#7
20240230220
2024-07-11

SYSTEM AND METHOD FOR COMBINED LIQUEFACTION AND DENSIFICATION OF OXYGEN

#8
20240175627
2024-05-30

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

#9
20240151464
2024-05-09

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

#10
20240142170
2024-05-02

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

#11
20240125547
2024-04-18

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

#12
20230408189
2023-12-21

PLANT AND METHOD FOR PRODUCING HYDROGEN AT CRYOGENIC TEMPERATURE

#13
20230332833
2023-10-19

Process for Producing Liquefied Hydrogen

#14
20230251031
2023-08-10

COLD ENERGY RECOVERY FACILITY AND MARINE VESSEL

#15
20230175773
2023-06-08

Hydrogen liquefier

#16
20230147955
2023-05-11

Hydrogen Liquefaction with Stored Hydrogen Refrigeration Source

#17
20230129424
2023-04-27

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS

#18
20230114229
2023-04-13

SYSTEM AND METHOD TO PRODUCE LIQUEFIED NATURAL GAS

#19
20230067883
2023-03-02

Mixed refrigerant hydrogen liquefaction device and method of using same

#20
20220221220
2022-07-14

Methods and systems for hydrogen liquefaction

#21
20220082210
2022-03-17

METHOD AND FILLING DEVICE FOR FILLING A TRANSPORT TANK

#22
20210364229
2021-11-25

Systems and Methods of Removing Contaminants in a Liquid Nitrogen Stream Used to Liquefy Natural Gas

#23
20210341221
2021-11-04

CONFIGURATIONS AND METHODS FOR SMALL SCALE LNG PRODUCTION

#24
20210164729
2021-06-03

Apparatus and process for liquefying gases

#25
20200124345
2020-04-23

Large scale coastal liquefaction

#26
20200003070
2020-01-02

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

#27
20190285340
2019-09-19

Method and system for liquefaction of natural gas using liquid nitrogen

#28
20190285339
2019-09-19

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

#29
20190204006
2019-07-04

Systems and methods for LNG refrigeration and liquefaction

#30
20190195536
2019-06-27

Fluid cooling apparatus

#31
20190137170
2019-05-09

System and method for producing liquefied natural gas

#32
20190063824
2019-02-28

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

#33
20180372404
2018-12-27

Method for liquefying natural gas and nitrogen

#34
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

#35
20180335256
2018-11-22

Apparatus and process for liquefying gases

#36
20180320957
2018-11-08

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

#37
20180313604
2018-11-01

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

#38
20180172344
2018-06-21

Liquefaction of Natural Gas

#39
20180100696
2018-04-12

Facility and method for producing liquid helium

#40
20180080710
2018-03-22

System and method for cryogenic purification of a feed stream comprising hydrogen, methane, nitrogen and argon

#41
20180080709
2018-03-22

System and method for cryogenic purification of a feed stream comprising hydrogen, methane, nitrogen and argon

#42
20180080708
2018-03-22

System and method for cryogenic purification of a feed stream comprising hydrogen, methane, nitrogen and argon

#43
20180038644
2018-02-08

Method for liquefaction of industrial gas by integration of methanol plant and air separation unit

#44
20180038643
2018-02-08

Method for the integration of liquefied natural gas and syngas production

#45
20180038641
2018-02-08

Method for liquefaction of industrial gas by integration of methanol plant and air separation unit

#46
20180038638
2018-02-08

Integration of industrial gas site with liquid hydrogen production

#47
20180003429
2018-01-04

Configurations and methods for small scale LNG production

#48
20170167787
2017-06-15

Method of natural gas liquefaction on LNG carriers storing liquid nitrogen

#49
20170016668
2017-01-19

Increasing efficiency in an LNG production system by pre-cooling a natural gas feed stream

#50
20160313057
2016-10-27

Integrated methane refrigeration system for liquefying natural gas

#51
20160054053
2016-02-25

Process for cooling a hydrocarbon-rich fraction

#52
20150308734
2015-10-29

Liquefaction of a hydrocarbon-rich fraction

#53
20150260451
2015-09-17

Liquefied natural gas facility employing an optimized mixed refrigerant system

#54
20150013380
2015-01-15

Method for separating off acid gases from natural gas

#55
20140245780
2014-09-04

Multi nitrogen expansion process for LNG production

#56
20140190205
2014-07-10

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

#57
20140116084
2014-05-01

Method for liquefying natural gas with a mixture of coolant gas

#58
20140053598
2014-02-27

Liquefier system

#59
20130192297
2013-08-01

Configurations and methods for small scale LNG production

#60
20130111948
2013-05-09

Purification of Carbon Dioxide

#61
20130061607
2013-03-14

COOLING SYSTEM

#62
20130008204
2013-01-10

Refrigeration process

#63
20120060553
2012-03-15

NATURAL GAS LIQUEFACTION

#64
20110209497
2011-09-01

System of carbon capture and sequestration

#65
20110209496
2011-09-01

SYSTEM FOR COMBINED CYCLE MECHANICAL DRIVE IN CRYOGENIC LIQUEFACTION PROCESSES

#66
20110203312
2011-08-25

Method and system for optimized LNG production

#67
20110113825
2011-05-19

DUAL NITROGEN EXPANSION PROCESS

#68
20110036121
2011-02-17

Refrigerant composition control

#69
20110030332
2011-02-10

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

#70
20110000256
2011-01-06

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

#71
20100275616
2010-11-04

CRYOGENIC REFRIGERATOR AND CONTROL METHOD THEREFOR

#72
20100263405
2010-10-21

Cryogenic Refrigeration Method And Device

#73
20100251763
2010-10-07

Apparatus and Methods for Natural Gas Transportation and Processing

#74
20100236286
2010-09-23

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

#75
20100192627
2010-08-05

Method and device for the cryogenic separation of a methane-rich flow

#76
20100175862
2010-07-15

BRAZED ALUMINUM HEAT EXCHANGER WITH SPLIT CORE ARRANGEMENT

#77
20100175425
2010-07-15

METHODS AND APPARATUS FOR LIQUEFACTION OF NATURAL GAS AND PRODUCTS THEREFROM

#78
20100175424
2010-07-15

METHODS AND APPARATUS FOR LIQUEFACTION OF NATURAL GAS AND PRODUCTS THEREFROM

#79
20100175423
2010-07-15

METHODS AND APPARATUS FOR LIQUEFACTION OF NATURAL GAS AND PRODUCTS THEREFROM

#80
20100154470
2010-06-24

Method and system for producing liquefied natural gas (LNG)

#81
20100132405
2010-06-03

Method and system for producing LNG

#82
20100126214
2010-05-27

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

#83
20100122551
2010-05-20

Liquefaction method and system

#84
20100084256
2010-04-08

System and method of carbon capture and sequestration

#85
20090293503
2009-12-03

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

#86
20090293502
2009-12-03

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

#87
20090232663
2009-09-17

Compressor-expander set critical speed avoidance

#88
20090158774
2009-06-25

Equipment and process for liquefaction of LNG boiloff gas

#89
20090158773
2009-06-25

Equipment and process for liquefaction of LNG boiloff gas

#90
20080202158
2008-08-28

System And Method For Cooling A Bog Stream

#91
20080184722
2008-08-07

METHOD AND APPARATUS FOR A REFRIGERATION CIRCUIT

#92
20070256450
2007-11-08

Equipment and process for liquefaction of LNG boiloff gas

#93
20060225461
2006-10-12

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

#94
20050210914
2005-09-29

Process and apparatus for liquefying hydrogen

#95
20050056051
2005-03-17

Hybrid gas liquefaction cycle with multiple expanders

#96
17558524
2025-12-09

Apparatus and process for liquefying gases