ClassID:

84781

C01B23/0068 - CPC Classification

Classification description:

Noble gases; Compounds thereof; Purification or separation processes of noble gases; Physical processing only by adsorption in solids characterised by the adsorbent Zeolites

Recent Application in this class:
#1
20250304445
2025-10-02

WASTE GAS TREATMENT DEVICE, WASTE GAS TREATMENT METHOD, AND WASTE GAS ADSORPTION AND RECOVERY SYSTEM INCLUDING THE SAME

#2
20250122079
2025-04-17

METHOD OF RECYCLING HELIUM FROM WASTE GAS IN SEMICONDUCTOR PROCESS

#3
20190091652
2019-03-28

RHO adsorbent compositions, methods of making and using them

#4
20190091651
2019-03-28

Processes using improved RHO adsorbent compositions

#5
20180058758
2018-03-01

Cryogenic adsorption process for xenon recovery

#6
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

#7
20160084571
2016-03-24

Purification of argon through liquid phase cryogenic adsorption

#8
20160008789
2016-01-14

Method for selectively isolating hydrogen or helium using a natrolite-based zeolite, and novel natrolite-based zeolite

#9
20150086475
2015-03-26

Method for selectively isolating hydrogen or helium using a natrolite-based zeolite, and novel natrolite-based zeolite

#10
20140249023
2014-09-04

Adsorbent composition for argon purification

#11
20140245781
2014-09-04

Purification of argon through liquid phase cryogenic adsorption

#12
20120167770
2012-07-05

Adsorbent material and xenon adsorption device using same

#13
20120167765
2012-07-05

Method for recovering xenon

#14
20120079939
2012-04-05

Recovering of xenon by adsorption process

#15
20110308385
2011-12-22

Method for selectively isolating hydrogen or helium using a natrolite-based zeolite, and novel natrolite-based zeolite

#16
20100139485
2010-06-10

GAS RECOVERY PROCESS

#17
20100115994
2010-05-13

ADSORBENT FOR CARBON MONOXIDE, GAS PURIFICATION METHOD, AND GAS PURIFICATION APPARATUS

#18
20090107331
2009-04-30

Method and apparatus for pressure swing adsorption

#19
20080107580
2008-05-08

Removal Of Metal Contaminants From Ultra-High Purity Gases

#20
20070199446
2007-08-30

Production of carbon monoxide-free hydrogen and helium from a high-purity source

#21
20050235831
2005-10-27

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

#22
17854307
2025-09-23

Separation of krypton gas from xenon gas using natural clinoptilolite

#23
15049704
2017-07-18

Method for argon production via cold pressure swing adsorption