ClassID:

85358

C01B2210/0045 - CPC Classification

Classification description:

Purification or separation of specific gases; Impurity removed Oxygen

Recent Application in this class:
#1
20250206607
2025-06-26

METHOD AND APPARATUS FOR SEPARATING A COMPONENT MIXTURE

#2
20250136457
2025-05-01

GEOTHERMALLY DRIVEN AMMONIA PRODUCTION

#3
20240217818
2024-07-04

METHOD AND EQUIPMENT FOR PRODUCING HYDROGEN-ENRICHED GAS

#4
20240010500
2024-01-11

GAS PRODUCTION DEVICE, GAS PRODUCTION SYSTEM AND GAS PRODUCTION METHOD

#5
20230382741
2023-11-30

METHOD FOR REMOVING OXYGEN MOLECULE AND METHOD FOR PURIFYING CARBON MONOXIDE

#6
20230227310
2023-07-20

A SYSTEM FOR OBTAINING HIGH PURITY NITROGEN IN NITROGEN GAS PURIFICATION APPLICATIONS AND A METHOD THEREOF

#7
20230038918
2023-02-09

INTEGRATED AMMONIA AND SULFURIC ACID PRODUCTION PLANT AND PROCESS

#8
20230019514
2023-01-19

Gas purification method and device

#9
20220176313
2022-06-09

AIR TREATMENT SYSTEM

#10
20210308620
2021-10-07

Carbon, nitrogen and oxygen separator and method of use thereof

#11
20210278131
2021-09-09

Method and apparatus for adsorptive distillation for cryogenic argon/oxygen separation

#12
20200317361
2020-10-08

Redundant systems for vehicle critical systems

#13
20200101412
2020-04-02

DIP-CONDUIT PURIFICATION APPARATUS AND METHOD OF PURIFYING A GAS

#14
20200054983
2020-02-20

Methods and systems for performing chemical separations

#15
20200009493
2020-01-09

Nitrogen service supply system

#16
20190145691
2019-05-16

Refrigerating and freezing device

#17
20190091651
2019-03-28

Processes using improved RHO adsorbent compositions

#18
20190046924
2019-02-14

Inert gas generating system

#19
20180354795
2018-12-13

Neon recovering/purifying system and neon recovering/purifying method

#20
20180335255
2018-11-22

Device and method for purifying a gas mixture

#21
20180169561
2018-06-21

METHODS AND SYSTEMS FOR PERFORMING CHEMICAL SEPARATIONS

#22
20180050912
2018-02-22

Method for refining argon gas and recovering and refining apparatus for argon gas

#23
20170333841
2017-11-23

Gas purifier

#24
20170296964
2017-10-19

Fluid separation module

#25
20170247116
2017-08-31

Air separation module with increased permeate area

#26
20170198968
2017-07-13

Argon production method and apparatus

#27
20170197831
2017-07-13

Methods and systems for isolating nitrogen from a gaseous mixture

#28
20170030639
2017-02-02

Method and apparatus for argon recovery in a cryogenic air separation unit integrated with a pressure swing adsorption system

#29
20160362298
2016-12-15

Helium enhanced heat transfer in adsorptive liquid or gas phase argon purification processes

#30
20160325996
2016-11-10

Method for recovering and purifying argon gas from silicon single crystal manufacturing apparatus and apparatus for recovering and purifying argon gas

#31
20160136570
2016-05-19

Air separation module with increased permeate area

#32
20160084571
2016-03-24

Purification of argon through liquid phase cryogenic adsorption

#33
20150056113
2015-02-26

Gas purifier

#34
20150007724
2015-01-08

Nitrogen-enriched gas manufacturing method, gas separation method and nitrogen-enriched gas manufacturing apparatus

#35
20140370125
2014-12-18

Method for producing NO/Ngaseous mixtures intended for the medical field

#36
20140326139
2014-11-06

Method for producing nitrogen gas, method for separating gas and device for producing nitrogen gas

#37
20140249023
2014-09-04

Adsorbent composition for argon purification

#38
20140245782
2014-09-04

Argon production method and apparatus

#39
20140245781
2014-09-04

Purification of argon through liquid phase cryogenic adsorption

#40
20140056773
2014-02-27

Oxygen removal

#41
20130149226
2013-06-13

Inert gas recovery and recycle for silicon crystal growth pulling process

#42
20130042755
2013-02-21

Combination membrane system for producing nitrogen enriched air

#43
20120100063
2012-04-26

Method for preparing high purity ammonia

#44
20120085125
2012-04-12

Method and device for separating argon from a gas mixture

#45
20120079939
2012-04-05

Recovering of xenon by adsorption process

#46
20110259194
2011-10-27

System for preventing contaminants from reaching a gas purifier

#47
20110182797
2011-07-28

Nitrogen-permeable membranes and uses thereof

#48
20110107792
2011-05-12

Shipboard hybrid system for making dry, oil-free, utility air and inert gas

#49
20110023538
2011-02-03

Process for purifying dinitrogen monoxide

#50
20100313750
2010-12-16

Method and system for membrane-based gas recovery

#51
20100248044
2010-09-30

ON BOARD GENERATION OF N2 FOR FUEL CELLS USING A MEMBRANE

#52
20100229466
2010-09-16

Oxygen removal

#53
20100206164
2010-08-19

Gas purification method

#54
20100178437
2010-07-15

Thin film depositing method

#55
20090151561
2009-06-18

Two stage pressure swing adsorption process for producing enriched-oxygen

#56
20090132206
2009-05-21

System and method of eliminating interference for impurities measurement in noble gases

#57
20090126733
2009-05-21

XENON RECOVERY FROM AMBIENT PRESSURE VENTILATOR LOOP

#58
20090120294
2009-05-14

System for preventing contaminants from reaching a gas purifier

#59
20090107331
2009-04-30

Method and apparatus for pressure swing adsorption

#60
20080271598
2008-11-06

Non-cryogenic nitrogen generators and methods of use

#61
20070227354
2007-10-04

Oxygen production process using three-stage pressure swing adsorption plants

#62
20060000357
2006-01-05

Method and system for producing inert gas from combustion by-products

#63
20050235831
2005-10-27

Xenon external recycling unit for recovery, purification and reuse of xenon in anaesthesia circuits

#64
20050120877
2005-06-09

Purification of hydride gases

#65
20050103193
2005-05-19

Oxygen and nitrogen enriched atmospheres in aircraft