ClassID:

160182

F25J3/04163 - 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 Hot end purification of the feed air

Sub-classes:
Recent Application in this class:
#1
20250334332
2025-10-30

LIQUID NITROGEN GENERATOR AND PROCESS

#2
20240384928
2024-11-21

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

#3
20230168031
2023-06-01

Systems For Extracting Oxygen From A Fluid

#4
20230027070
2023-01-26

Air separation apparatus, adsorber, and method

#5
20210231368
2021-07-29

Systems for extracting oxygen from a fluid

#6
20180299195
2018-10-18

Method for controlling production of high pressure gaseous oxygen in an air separation unit

#7
20180003437
2018-01-04

Method for operating an air separation plant

#8
20180003435
2018-01-04

Apparatus for operating an air separation plant

#9
20180003434
2018-01-04

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

#10
20180003433
2018-01-04

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

#11
20170241708
2017-08-24

Systems for extracting oxygen from a liquid

#12
20170234614
2017-08-17

Method for the cryogenic separation of air and air separation plant

#13
20170211879
2017-07-27

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

#14
20170205142
2017-07-20

Method for obtaining an air product in an air separation plant and air separation plant

#15
20160123663
2016-05-05

Air separation method

#16
20160123661
2016-05-05

Air separation apparatus

#17
20150354888
2015-12-10

Air separation apparatus to produce oxygen and nitrogen through isobaric separation

#18
20150000335
2015-01-01

Method and apparatus for separating air by cryogenic distillation

#19
20140202208
2014-07-24

Method and device for separating a gas mixture by cryogenic distillation

#20
20110226015
2011-09-22

Air separation method and apparatus

#21
20110100055
2011-05-05

Hybrid Air Separation Method with Noncryogenic Preliminary Enrichment and Cryogenic Purification Based on a Single Component Gas or Liquid Generator

#22
20100011811
2010-01-21

Method and device for separating a gas mixture by cryogenic distillation

#23
20080092589
2008-04-24

Method for the Pre-Treatment of Air Prior to the Introduction Thereof Into a Cryogenic Air Separation Unit, and Corresponding Apparatus

#24
20060213224
2006-09-28

Process and installation for the fractionation of air into specific gases

#25
20060210454
2006-09-21

Production of high purity and ultra-high purity gas

#26
20060026988
2006-02-09

Energy efficient, inexpensive extraction of oxygen from ambient air for portable and home use