ClassID:

160205

F25J3/04315 - 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 nitrogen Lowest pressure or impure nitrogen, so-called waste nitrogen expansion

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

AIR SEPARATION UNIT

#2
20240183610
2024-06-06

METHOD AND PLANT FOR LOW TEMPERATURE FRACTIONATION OF AIR

#3
20230358468
2023-11-09

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

#4
20230168030
2023-06-01

PROCESS FOR CRYOGENIC FRACTIONATION OF AIR, AIR FRACTIONATION PLANT AND INTEGRATED SYSTEM COMPOSED OF AT LEAST TWO AIR FRACTIONATION PLANTS

#5
20220325952
2022-10-13

METHOD AND APPARATUS FOR PRODUCING PRODUCT NITROGEN GAS AND PRODUCT ARGON

#6
20210164729
2021-06-03

Apparatus and process for liquefying gases

#7
20180335256
2018-11-22

Apparatus and process for liquefying gases

#8
20180180357
2018-06-28

PROCESS FOR PRODUCING ONE OR MORE AIR PRODUCTS, AND AIR SEPARATION PLANT

#9
20180149426
2018-05-31

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

#10
20150168053
2015-06-18

Main heat exchange system and method for reboiling

#11
20130019634
2013-01-24

AIR SEPARATION METHOD AND APPARATUS

#12
20120144861
2012-06-14

Process and installation for producing high-pressure nitrogen

#13
20110067444
2011-03-24

Processes and Device for Low Temperature Separation of Air

#14
20100287986
2010-11-18

Air separation apparatus and method

#15
20100192629
2010-08-05

OXYGEN PRODUCT PRODUCTION METHOD

#16
20100192628
2010-08-05

APPARATUS AND AIR SEPARATION PLANT

#17
20100037656
2010-02-18

Krypton and xenon recovery method

#18
20090071191
2009-03-19

Cryogenic air separation process with excess turbine refrigeration

#19
20080110203
2008-05-15

Cryogenic process system with extended bonnet filter

#20
20070170624
2007-07-26

Method for renovating a combined blast furnace and air/gas separation unit system

#21
20070095100
2007-05-03

Cryogenic air separation process with excess turbine refrigeration

#22
20050126221
2005-06-16

Process and apparatus for the separation of air by cryogenic distillation

#23
17558524
2025-12-09

Apparatus and process for liquefying gases