ClassID:

160206

F25J3/04321 - 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; Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of oxygen

Recent Application in this class:
#1
20260092735
2026-04-02

AIR SEPARATION UNIT

#2
20250314424
2025-10-09

Apparatus and Process for Improved Argon Recovery

#3
20250257941
2025-08-14

AIR SEPARATION UNIT

#4
20250060158
2025-02-20

NITROGEN GENERATING DEVICE AND NITROGEN GENERATING METHOD

#5
20240353174
2024-10-24

DUAL TEMPERATURE LIQUID OXYGEN SUBCOOLING IN AN AIR SEPARATION UNIT

#6
20240353173
2024-10-24

ULTRA-HIGH-PURITY OXYGEN PRODUCTION METHOD AND ULTRA-HIGH-PURITY OXYGEN PRODUCTION APPARATUS

#7
20240183610
2024-06-06

METHOD AND PLANT FOR LOW TEMPERATURE FRACTIONATION OF AIR

#8
20240053097
2024-02-15

AIR SEPARATION UNIT AND AIR SEPARATION METHOD

#9
20240044578
2024-02-08

METHOD FOR SEPARATING AIR BY CRYOGENIC DISTILLATION

#10
20230358468
2023-11-09

PROCESS AND APPARATUS FOR CRYOGENIC SEPARATION OF AIR WITH MIXED GAS TURBINE

#11
20230043513
2023-02-09

PROCESS AND PLANT FOR PROVISION OF OXYGEN PRODUCT

#12
20230038170
2023-02-09

PROCESS AND PLANT FOR LOW-TEMPERATURE SEPARATION OF AIR

#13
20220325952
2022-10-13

METHOD AND APPARATUS FOR PRODUCING PRODUCT NITROGEN GAS AND PRODUCT ARGON

#14
20210381761
2021-12-09

Method and unit for low-temperature air separation

#15
20210348839
2021-11-11

SYSTEM AND METHOD FOR CRYOGENIC AIR SEPARATION USING A BOOSTER LOADED LIQUID TURBINE FOR EXPANSION OF A LIQUID AIR STREAM

#16
20210164729
2021-06-03

Apparatus and process for liquefying gases

#17
20200318898
2020-10-08

Cryogenic air separation apparatus

#18
20200182543
2020-06-11

Gas production system

#19
20190331418
2019-10-31

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

#20
20190242646
2019-08-08

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

#21
20180335256
2018-11-22

Apparatus and process for liquefying gases

#22
20180017322
2018-01-18

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

#23
20170205142
2017-07-20

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

#24
20160370111
2016-12-22

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

#25
20120144861
2012-06-14

Process and installation for producing high-pressure nitrogen

#26
20100242537
2010-09-30

PROCESS AND APPARATUS FOR CRYOGENIC AIR SEPARATION

#27
20090120128
2009-05-14

Low Temperature Air Fractionation with External Fluid

#28
20080289362
2008-11-27

PROCESS AND APPARATUS FOR LOW-TEMPERATURE AIR FRACTIONATION

#29
20070204652
2007-09-06

PROCESS AND APPARATUS FOR PRODUCING ULTRAPURE OXYGEN

#30
17558524
2025-12-09

Apparatus and process for liquefying gases