Patents-Review.com
ClassID:

160192 ⎘

F25J3/0423 - CPC Classification

Classification description:

Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air; Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams; Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams Subcooling of liquid process streams

Recent Application in this class:
#1
20260036366
2026-02-05

HEAT EXCHANGER

 #2
20240183610
2024-06-06

METHOD AND PLANT FOR LOW TEMPERATURE FRACTIONATION OF AIR

 #3
20240044578
2024-02-08

METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

 #4
20240035741
2024-02-01

AIR SEPARATION UNIT AND METHOD FOR CRYOGENIC SEPARATION OF AIR USING A DISTILLATION COLUMN SYSTEM INCLUDING AN INTERMEDIATE PRESSURE KETTLE COLUMN

 #5
20240035740
2024-02-01

AIR SEPARATION UNIT AND METHOD FOR CRYOGENIC SEPARATION OF AIR USING A DISTILLATION COLUMN SYSTEM INCLUDING AN INTERMEDIATE PRESSURE KETTLE COLUMN

 #6
20230125267
2023-04-27

Cryogenic Air Separation Method and Air Separation Unit

 #7
20230052938
2023-02-16

Cryogenic air separation unit with argon condenser vapor recycle

 #8
20230043513
2023-02-09

PROCESS AND PLANT FOR PROVISION OF OXYGEN PRODUCT

 #9
20230038170
2023-02-09

PROCESS AND PLANT FOR LOW-TEMPERATURE SEPARATION OF AIR

 #10
20220325952
2022-10-13

METHOD AND APPARATUS FOR PRODUCING PRODUCT NITROGEN GAS AND PRODUCT ARGON

 #11
20220221221
2022-07-14

Fluid recovery process and apparatus

 #12
20220146196
2022-05-12

SYSTEM AND METHOD FOR FLEXIBLE RECOVERY OF ARGON FROM A CRYOGENIC AIR SEPARATION UNIT

 #13
20220146195
2022-05-12

METHOD FOR FLEXIBLE RECOVERY OF ARGON FROM A CRYOGENIC AIR SEPARATION UNIT

 #14
20220090855
2022-03-24

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

 #15
20220074656
2022-03-10

APPARATUS AND METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

 #16
20210404740
2021-12-30

Plate fin heat exchanger assembly

 #17
20210381761
2021-12-09

Method and unit for low-temperature air separation

 #18
20210300758
2021-09-30

System for preparing deeply subcooled liquid oxygen based on mixing of liquid oxygen and liquid nitrogen and then vacuum-pumping

 #19
20200370825
2020-11-26

Method and apparatus for separating air by cryogenic distillation

 #20
20190242646
2019-08-08

Method and apparatus for obtaining pressurized nitrogen by cryogenic separation of air

 #21
20190204009
2019-07-04

System and method for flexible recovery of argon from a cryogenic air separation unit

 #22
20190049177
2019-02-14

Apparatus and method for separation of air by cryogenic distillation

 #23
20190041130
2019-02-07

Method and device for separating air by cryogenic distillation

 #24
20190041129
2019-02-07

Device and method for separating air by cryogenic distillation

 #25
20180149426
2018-05-31

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

 #26
20180017322
2018-01-18

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

 #27
20170299261
2017-10-19

Liquid nitrogen production

 #28
20160200446
2016-07-14

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

 #29
20160123663
2016-05-05

Air separation method

 #30
20160123661
2016-05-05

Air separation apparatus

 #31
20150323247
2015-11-12

HEAT EXCHANGER ASSEMBLY AND SYSTEM FOR A CRYOGENIC AIR SEPARATION UNIT

 #32
20150007608
2015-01-08

Air separation method and apparatus with improved argon recovery

 #33
20150007607
2015-01-08

Air separation method and apparatus with improved argon recovery

 #34
20130139547
2013-06-06

AIR SEPARATION METHOD AND APPARATUS

 #35
20130139546
2013-06-06

AIR SEPARATION METHOD AND APPARATUS

 #36
20130086941
2013-04-11

AIR SEPARATION METHOD AND APPARATUS

 #37
20120125045
2012-05-24

Air separation method and apparatus

 #38
20110289964
2011-12-01

Separation method and apparatus

 #39
20110226015
2011-09-22

Air separation method and apparatus

 #40
20110138855
2011-06-16

Oxygen production method and apparatus

 #41
20110083469
2011-04-14

Process and Device for Obtaining Liquid Nitrogen by Low Temperature Air Fractionation

 #42
20100242538
2010-09-30

Cryogenic rectification method

 #43
20100242537
2010-09-30

PROCESS AND APPARATUS FOR CRYOGENIC AIR SEPARATION

 #44
20090223247
2009-09-10

Method of generating nitrogen and apparatus for use in the same

 #45
20090211295
2009-08-27

ASSEMBLY OF HEAT EXCHANGERS AND A CRYOGENIC DISTILLATION APPARATUS INCORPORATING THE SAME

 #46
20090120129
2009-05-14

Method for varying liquid production in an air separation plant with use of a variable speed turboexpander

 #47
20080307828
2008-12-18

Air separation method and apparatus

 #48
20080245102
2008-10-09

Process and Apparatus for the Separation of Air by Cryogenic Distillation

 #49
20080134718
2008-06-12

Separation method and apparatus

 #50
20070283719
2007-12-13

Air separation method

 #51
20070209388
2007-09-13

Cryogenic air separation method with temperature controlled condensed feed air

 #52
20070204652
2007-09-06

PROCESS AND APPARATUS FOR PRODUCING ULTRAPURE OXYGEN

 #53
20060169000
2006-08-03

Process and apparatus for the separation of air by cryogenic distillation

 #54
20060075779
2006-04-13

Process for the cryogenic distillation of air

 #55
12800637
2017-08-08

Liquid nitrogen production