ClassID:

160388

F25J2210/40 - CPC Classification

Classification description:

Processes characterised by the type or other details of the feed stream Air or oxygen enriched air, i.e. generally less than 30mol% of O

Recent Application in this class:
#1
20260092736
2026-04-02

DIRECT AIR CAPTURE OF CO2

#2
20260035243
2026-02-05

SYSTEM AND METHOD FOR PRODUCTION OF ULTRA-HIGH PURITY OXYGEN

#3
20250383144
2025-12-18

AIR SEPARATION METHOD AND PLANT

#4
20250334332
2025-10-30

LIQUID NITROGEN GENERATOR AND PROCESS

#5
20250314424
2025-10-09

Apparatus and Process for Improved Argon Recovery

#6
20250305764
2025-10-02

PROCESS FOR REMOTE LOX/LIN PRODUCTION BY HPAIR TURBO EXPANSION

#7
20250271208
2025-08-28

PROCESS AND PLANT FOR PROVIDING A NITROGEN PRODUCT, AN OXYGEN PRODUCT AND A HYDROGEN PRODUCT

#8
20250264274
2025-08-21

AIR SEPARATION UNIT

#9
20250237431
2025-07-24

METHOD AND APPARATUS FOR COMPRESSING A GAS

#10
20250060158
2025-02-20

NITROGEN GENERATING DEVICE AND NITROGEN GENERATING METHOD

#11
20250003679
2025-01-02

AIR SEPARATION SYSTEM AND AIR SEPARATION METHOD

#12
20240393043
2024-11-28

METHOD FOR THE LOW-TEMPERATURE SEPARATION OF AIR AND AIR SEPARATION PLANT

#13
20240377131
2024-11-14

PLANT AND PROCESS FOR LOW-TEMPERATURE FRACTIONATION OF AIR

#14
20240353174
2024-10-24

DUAL TEMPERATURE LIQUID OXYGEN SUBCOOLING IN AN AIR SEPARATION UNIT

#15
20240181381
2024-06-06

A METHOD FOR REMOVING CO2 FROM A CO2-CONTAINING STREAM

#16
20240060717
2024-02-22

SYSTEM FOR STORING AND PRODUCING ENERGY TO STABILIZE THE POWER NETWORK

#17
20240035744
2024-02-01

Air separation unit and method for production of nitrogen and argon using a distillation column system with an intermediate pressure kettle column

#18
20240035743
2024-02-01

Process and apparatus for recovery of at least nitrogen and argon

#19
20230417482
2023-12-28

POWER GENERATION PROCESS UTILIZING FUEL, LIQUID AIR AND/OR OXYGEN WITH ZERO CO2 EMISSIONS

#20
20230408192
2023-12-21

POWER GENERATION PROCESS UTILIZING FUEL, LIQUID AIR AND/OR OXYGEN WITH ZERO CO2 EMISSIONS

#21
20230314070
2023-10-05

CRYOGENIC REMOVAL OF CARBON DIOXIDE FROM THE ATMOSPHERE

#22
20230280093
2023-09-07

AIR SEPARATION APPARATUS

#23
20230251033
2023-08-10

Dual column nitrogen producing air separation unit with split kettle reboil and integrated condenser-reboiler

#24
20230213278
2023-07-06

APPARATUS FOR PRECOOLING HYDROGEN FOR LIQUEFACTION USING EXTERNAL LIQUID NITROGEN AND HIGH PRESSURE GASEOUS NITROGEN

#25
20230213273
2023-07-06

INTEGRATED INDUSTRIAL UNIT

#26
20230168031
2023-06-01

Systems For Extracting Oxygen From A Fluid

#27
20230160631
2023-05-25

SYSTEM FOR GENERATING AN INERT GAS FOR AN AIRCRAFT USING LIQUID HYDROGEN

#28
20230090158
2023-03-23

METHOD AND APPARATUS FOR CRYOGENIC AIR SEPARATION

#29
20230082208
2023-03-16

OXYGEN LIQUEFIER DESIGN PHASING

#30
20230031323
2023-02-02

A METHOD AND A RELATIVE APPARATUS FOR PRODUCING LIQUIFIED GASES

#31
20230027070
2023-01-26

Air separation apparatus, adsorber, and method

#32
20230003445
2023-01-05

FULL LIQUID-PRODUCT AIR SEPARATION EQUIPMENT AND PROCESS THEREFOR

#33
20220404094
2022-12-22

SYSTEM AND M ETHOD FOR SUPPLYING CRYOGENIC REFRIGERATION

#34
20220260312
2022-08-18

PROCESS AND PLANT FOR LOW-TEMPERATURE FRACTIONATION OF AIR

#35
20220252344
2022-08-11

Air separation device and air separation method

#36
20220221221
2022-07-14

Fluid recovery process and apparatus

#37
20220128301
2022-04-28

METHOD AND APPARATUS FOR PRODUCING HIGH-PRESSURE NITROGEN

#38
20220090855
2022-03-24

Method and apparatus for producing high-purity nitrogen and low-purity oxygen

#39
20220057137
2022-02-24

System for pre-purification of a feed gas stream

#40
20210381763
2021-12-09

Dual column nitrogen producing air separation unit with split kettle reboil and integrated condenser-reboiler

#41
20210372696
2021-12-02

ENHANCEMENTS TO A DUAL COLUMN NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT

#42
20210364232
2021-11-25

PROCESS FOR SUPPLYING OXYGEN AND/OR NITROGEN AND ALSO ARGON TO A GEOGRAPHIC ZONE

#43
20210356205
2021-11-18

ENHANCEMENTS TO A MODERATE PRESSURE NITROGEN AND ARGON PRODUCING CRYOGENIC AIR SEPARATION UNIT

#44
20210310732
2021-10-07

Product gas supply quantity adjustment device and air separation apparatus comprising same

#45
20210278132
2021-09-09

Air separation device

#46
20210231368
2021-07-29

Systems for extracting oxygen from a fluid

#47
20210123671
2021-04-29

METHOD AND APPARATUS FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#48
20210095922
2021-04-01

Method for the production of air gases by the cryogenic separation of air with improved front end purification and air compression

#49
20210080171
2021-03-18

High-purity oxygen production system

#50
20200158428
2020-05-21

Method for utilizing waste air to improve the capacity of an existing air separation unit

#51
20200158427
2020-05-21

Method for utilizing waste air to improve the capacity of an existing air separation unit

#52
20200149807
2020-05-14

System and method for enhanced recovery of argon and oxygen from a nitrogen producing cryogenic air separation unit

#53
20200149806
2020-05-14

SYSTEM AND METHOD FOR ENHANCED RECOVERY OF ARGON AND OXYGEN FROM A NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT

#54
20200132368
2020-04-30

Apparatus for the distillation of air by cryogenic distillation

#55
20200080773
2020-03-12

CRYOGENIC AIR SEPARATION UNIT WITH FLEXIBLE LIQUID PRODUCT MAKE

#56
20190331419
2019-10-31

System and method for enhanced recovery of argon and oxygen from a nitrogen producing cryogenic air separation unit

#57
20190331417
2019-10-31

System and method for enhanced recovery of argon and oxygen from a nitrogen producing cryogenic air separation unit

#58
20190331416
2019-10-31

System and method for enhanced recovery of argon and oxygen from a nitrogen producing cryogenic air separation unit

#59
20190137173
2019-05-09

Method and System for Using a Target Gas Provided by a Gas Decomposition Device

#60
20190072326
2019-03-07

System and method for recovery of non-condensable gases such as neon, helium, xenon, and krypton from an air separation unit

#61
20180335255
2018-11-22

Device and method for purifying a gas mixture

#62
20180187971
2018-07-05

Method for thermally assisted electric energy storage

#63
20180149426
2018-05-31

Process for increasing low pressure pure nitrogen production by revamping original apparatus for cryogenic air separation

#64
20180112913
2018-04-26

Plate heat exchanger condenser-evaporator and process for low-temperature air separation

#65
20180080379
2018-03-22

Liquid air power and storage with carbon capture

#66
20180073802
2018-03-15

Method for energy storage with co-production of peaking power and liquefied natural gas

#67
20180038644
2018-02-08

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

#68
20180038641
2018-02-08

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

#69
20180038638
2018-02-08

Integration of industrial gas site with liquid hydrogen production

#70
20180023888
2018-01-25

METHOD FOR RECOVERING HELIUM

#71
20180017322
2018-01-18

Method and apparatus for producing compressed nitrogen and liquid nitrogen by cryogenic separation of air

#72
20180003436
2018-01-04

Method for the production of air gases by the cryogenic separation of air with variable liquid production and power usage

#73
20180003435
2018-01-04

Apparatus for operating an air separation plant

#74
20180003434
2018-01-04

Apparatus for the production of air gases by the cryogenic separation of air

#75
20180003433
2018-01-04

Method for the production of air gases by the cryogenic separation of air

#76
20170299261
2017-10-19

Liquid nitrogen production

#77
20170276428
2017-09-28

Method for the production of air gases by the cryogenic separation of air with improved front end purification and air compression

#78
20170241708
2017-08-24

Systems for extracting oxygen from a liquid

#79
20170115053
2017-04-27

Air separation system and method

#80
20170045291
2017-02-16

METHOD FOR PURIFYING, COOLING AND SEPARATING A GASEOUS MIXTURE AND ASSOCIATED APPARATUS

#81
20170038137
2017-02-09

METHOD FOR THE PRODUCTION OF LIQUEFIED NATURAL GAS AND NITROGEN

#82
20170038132
2017-02-09

Methods and systems for integration of industrial site efficiency losses to produce LNG and/or LIN

#83
20170030637
2017-02-02

Method for the production of low pressure gaseous oxygen

#84
20170030636
2017-02-02

Apparatus for the production of low pressure gaseous oxygen

#85
20170030635
2017-02-02

AIR FRACTIONATION PLANT, OPERATING METHOD AND CONTROL FACILITY

#86
20170003071
2017-01-05

PURIFYING CRYOGENIC FLUIDS

#87
20160370111
2016-12-22

METHOD FOR PRODUCING AT LEAST ONE AIR PRODUCT, AIR SEPARATION SYSTEM, METHOD AND DEVICE FOR PRODUCING ELECTRICAL ENERGY

#88
20160200446
2016-07-14

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

#89
20160187060
2016-06-30

Method and device for discharging components that are less volatile than oxygen from an air separation plant

#90
20160003537
2016-01-07

Air separation method and air separation apparatus

#91
20160003536
2016-01-07

METHOD AND DEVICE FOR PRODUCING GASEOUS COMPRESSED OXYGEN HAVING VARIABLE POWER CONSUMPTION

#92
20150283497
2015-10-08

Air compression system and method

#93
20150226094
2015-08-13

Method and device for generating electrical energy

#94
20140260422
2014-09-18

Low temperature air separation process for producing pressurized gaseous product

#95
20140165587
2014-06-19

System for converting gaseous fuel into liquid fuel

#96
20140000289
2014-01-02

Defroster for oxygen liquefier

#97
20130312457
2013-11-28

Process and device for the cryogenic separation of a methane-rich stream

#98
20130312427
2013-11-28

Air compression system and method

#99
20130269387
2013-10-17

Process and apparatus for the separation of air by cryogenic distillation

#100
20120186296
2012-07-26

PROCESS AND APPARATUS FOR SWEETENING AND LIQUEFYING A GAS STREAM

#101
20120103314
2012-05-03

Split cycle reciprocating piston engine

#102
20120103010
2012-05-03

System and method for producing LNG from contaminated gas streams

#103
20120085232
2012-04-12

METHODS FOR REMOVING CONTAMINANTS FROM NATURAL GAS

#104
20120000242
2012-01-05

METHOD AND APPARATUS FOR STORING LIQUEFIED NATURAL GAS

#105
20110308275
2011-12-22

METHOD AND SYSTEM FOR PERIODIC COOLING, STORING, AND HEATING OF ATMOSPHERIC GAS

#106
20110259044
2011-10-27

METHOD AND APPARATUS FOR PRODUCING LIQUEFIED NATURAL GAS

#107
20110239698
2011-10-06

Liquid oxygen production device and method

#108
20110146343
2011-06-23

Process and apparatus for the separation of air by cryogenic distillation

#109
20110139417
2011-06-16

METHOD FOR MAKING BRAZED ALUMINUM HEAT EXCHANGER AND APPARATUS

#110
20110120185
2011-05-26

METHODS FOR PRODUCING STERILE CRYOGENIC FLUIDS

#111
20100192627
2010-08-05

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

#112
20090282840
2009-11-19

ENERGY STORAGE AND GENERATION

#113
20090223247
2009-09-10

Method of generating nitrogen and apparatus for use in the same

#114
20090020015
2009-01-22

Device for supplying domiciliary and ambulatory oxygen

#115
20090007595
2009-01-08

Low temperature air separation process for producing pressurized gaseous product

#116
20080148770
2008-06-26

Process to obtain liquefied natural gas

#117
20080066494
2008-03-20

Light component separation from a carbon dioxide mixture

#118
20070186563
2007-08-16

System and method for cold recovery

#119
20070130992
2007-06-14

Cyrogenic Air Separation Process and Apparatus

#120
20060130519
2006-06-22

Small-scale gas liquefier

#121
20060101851
2006-05-18

Light component separation from a carbon dioxide mixture

#122
20060010912
2006-01-19

Low temperature air separation process for producing pressurized gaseous product

#123
20050132746
2005-06-23

Cryogenic air separation process and apparatus

#124
12800637
2017-08-08

Liquid nitrogen production