ClassID:

160469

F25J2240/10 - CPC Classification

Classification description:

Processes or apparatus involving steps for expanding of process streams; Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream the fluid being air

Recent Application in this class:
#1
20260104144
2026-04-16

LIQUID AIR ENERGY CONVERSION SYSTEM AND METHOD

#2
20260063250
2026-03-05

LIQUID AIR ENERGY CONVERSION SYSTEM AND METHOD

#3
20250334332
2025-10-30

LIQUID NITROGEN GENERATOR AND PROCESS

#4
20250297802
2025-09-25

SYSTEM AND METHOD FOR THE PRODUCTION AND SUPPLY OF A DENSIFIED LIQUID OXYGEN PRODUCT

#5
20240384928
2024-11-21

METHOD AND PLANT FOR PROVIDING A PRESSURIZED OXYGEN-RICH, GASEOUS AIR PRODUCT

#6
20240019207
2024-01-18

SYSTEM AND METHOD FOR GAS LIQUEFICATION

#7
20230090158
2023-03-23

METHOD AND APPARATUS FOR CRYOGENIC AIR SEPARATION

#8
20230003446
2023-01-05

METHOD FOR OPERATING AN AIR SEPARATION PLANT, HAVING A DISTILLATION COLUMN SYSTEM, A HEAT EXCHANGER AND AN ADSORBER, AND AIR SEPARATION PLANT

#9
20220282914
2022-09-08

Process and apparatus for the separation of air by cryogenic distillation

#10
20220074657
2022-03-10

Method for starting up a cryogenic air separation unit and associated air separation unit

#11
20210372698
2021-12-02

ENHANCEMENTS TO A DUAL COLUMN NITROGEN PRODUCING CRYOGENIC AIR SEPARATION UNIT

#12
20210364233
2021-11-25

Method and apparatus for separating air by cryogenic distillation

#13
20210140708
2021-05-13

CRYOGENIC RECTIFICATION PROCESS-BASED METHOD FOR PRODUCING AIR PRODUCT, AND AIR SEPARATION SYSTEM

#14
20210123671
2021-04-29

METHOD AND APPARATUS FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#15
20210055049
2021-02-25

Utilization of nitrogen-enriched streams produced in air separation units comprising split-core main heat exchangers

#16
20200355429
2020-11-12

CRYOGENIC DISTILLATION METHOD AND APPARATUS FOR PRODUCING PRESSURIZED AIR BY MEANS OF EXPANDER BOOSTER IN LINKAGE WITH NITROGEN EXPANDER FOR BRAKING

#17
20200182542
2020-06-11

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

#18
20200158428
2020-05-21

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

#19
20200158427
2020-05-21

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

#20
20200149808
2020-05-14

AIR SEPARATION METHOD AND APPARATUS

#21
20200132367
2020-04-30

Method and apparatus for air separation by cryogenic distillation

#22
20200080773
2020-03-12

CRYOGENIC AIR SEPARATION UNIT WITH FLEXIBLE LIQUID PRODUCT MAKE

#23
20190331418
2019-10-31

System and method for high recovery of nitrogen and argon from a moderate pressure cryogenic air separation unit

#24
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

#25
20190049177
2019-02-14

Apparatus and method for separation of air by cryogenic distillation

#26
20190041130
2019-02-07

Method and device for separating air by cryogenic distillation

#27
20190041129
2019-02-07

Device and method for separating air by cryogenic distillation

#28
20180372405
2018-12-27

METHOD AND DEVICE FOR OBTAINING PURE NITROGEN AND PURE OXYGEN BY LOW-TEMPERATURE SEPARATION OF AIR

#29
20180187971
2018-07-05

Method for thermally assisted electric energy storage

#30
20180073804
2018-03-15

Cryogenic air separation method for producing oxygen at high pressures

#31
20180010848
2018-01-11

AIR SEPARATION METHOD AND APPARATUS

#32
20180003437
2018-01-04

Method for operating an air separation plant

#33
20180003435
2018-01-04

Apparatus for operating an air separation plant

#34
20180003434
2018-01-04

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

#35
20180003433
2018-01-04

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

#36
20170299261
2017-10-19

Liquid nitrogen production

#37
20170234614
2017-08-17

Method for the cryogenic separation of air and air separation plant

#38
20170211882
2017-07-27

PRODUCTION OF AN AIR PRODUCT IN AN AIR SEPARATION PLANT WITH COLD STORAGE UNIT

#39
20170211879
2017-07-27

Process and apparatus for producing pressurized gaseous nitrogen by cryogenic separation of air

#40
20170191752
2017-07-06

Air purification units

#41
20170051971
2017-02-23

Distillation column system and plant for production of oxygen by cryogenic fractionation of air

#42
20170016577
2017-01-19

Liquid Air Energy Storage Systems, Devices, and Methods

#43
20170003073
2017-01-05

METHOD AND APPARATUS FOR SEPARATION AT SUBAMBIENT TEMPERATURE

#44
20160265841
2016-09-15

System and method for generation of oxygen by low-temperature air separation

#45
20160245586
2016-08-25

Method and device for separating air by cryogenic distillation

#46
20160231053
2016-08-11

Process and apparatus for producing gaseous oxygen by cryogenic distillation of air

#47
20160190896
2016-06-30

Method for generating electrical energy and energy generation plant

#48
20160003531
2016-01-07

Method and device for generating gaseous compressed nitrogen

#49
20150226094
2015-08-13

Method and device for generating electrical energy

#50
20150192065
2015-07-09

PROCESS AND APPARATUS FOR GENERATING ELECTRIC ENERGY

#51
20140230486
2014-08-21

Method and device for recovering high-pressure oxygen and high-pressure nitrogen

#52
20140165587
2014-06-19

System for converting gaseous fuel into liquid fuel

#53
20130230412
2013-09-05

Solution for controlling a turbo compressor

#54
20130205831
2013-08-15

Method and device for obtaining compressed oxygen and compressed nitrogen by the low-temperature separation of air

#55
20130047666
2013-02-28

METHOD AND DEVICE FOR OBTAINING PRESSURIZED NITROGEN AND PRESSURIZED OXYGEN BY LOW-TEMPERATURE SEPARATION OF AIR

#56
20130019634
2013-01-24

AIR SEPARATION METHOD AND APPARATUS

#57
20120216520
2012-08-30

Energy storage system using supercritical air

#58
20120151961
2012-06-21

Liquid air as energy storage

#59
20120131952
2012-05-31

METHOD FOR RECOVERING A GASEOUS PRESSURE PRODUCT BY LOW-TEMPERATURE SEPARATION OF AIR

#60
20120118006
2012-05-17

Method and apparatus for separating air by cryogenic distillation

#61
20120036892
2012-02-16

AIR SEPARATION METHOD AND APPARATUS

#62
20120036891
2012-02-16

AIR SEPARATION METHOD AND APPARATUS

#63
20110308275
2011-12-22

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

#64
20110192194
2011-08-11

CRYOGENIC SEPARATION METHOD AND APPARATUS

#65
20110067444
2011-03-24

Processes and Device for Low Temperature Separation of Air

#66
20100251766
2010-10-07

Refrigeration generation method and system

#67
20100242538
2010-09-30

Cryogenic rectification method

#68
20100101231
2010-04-29

PROCESS FOR A HIGH EFFICIENCY AND LOW EMISSION OPERATION OF POWER STATIONS AS WELL AS FOR STORAGE AND CONVERSION OF ENERGY

#69
20100037656
2010-02-18

Krypton and xenon recovery method

#70
20090282840
2009-11-19

ENERGY STORAGE AND GENERATION

#71
20090241595
2009-10-01

DISTILLATION METHOD AND APPARATUS

#72
20090205368
2009-08-20

Distillation method and apparatus

#73
20090071191
2009-03-19

Cryogenic air separation process with excess turbine refrigeration

#74
20080307828
2008-12-18

Air separation method and apparatus

#75
20080223077
2008-09-18

Air separation method

#76
20080223076
2008-09-18

Cryogenic Distillation Method and Installation for Air Separation

#77
20080110203
2008-05-15

Cryogenic process system with extended bonnet filter

#78
20070209389
2007-09-13

Cryogenic air separation system for enhanced liquid production

#79
20070095100
2007-05-03

Cryogenic air separation process with excess turbine refrigeration

#80
20060254312
2006-11-16

Method and installation for producing, in gaseous form and under high pressure, at least one fluid chosen from oxygen, argon and nitrogen by cryogenic distillation of air

#81
12800637
2017-08-08

Liquid nitrogen production