ClassID:

85336

C01B2210/001 - CPC Classification

Classification description:

Purification or separation of specific gases; Separation or purification processing; Physical processing by making use of membranes

Sub-classes:
Recent Application in this class:
#1
20250361144
2025-11-27

SYSTEMS AND METHODS FOR PRODUCTION OF LOW CARBON INTENSITY HYDROGEN FROM GEOLOGIC SOURCES

#2
20250276275
2025-09-04

PROCESS TO PURIFY HELIUM FROM METHANE WITH INTEGRATED NITROGEN REJECTION USING MEMBRANE TECHNOLOGY

#3
20250214836
2025-07-03

H2 RECOVERY AND CO2 SEPARATION USING MEMBRANE

#4
20250197218
2025-06-19

Apparatus and Method for Nitrogen Generation for Methanol Powered Maritime Vehicle

#5
20250162867
2025-05-22

HYDROCARBON PYROLYSIS USING SUBMICRON-SIZED HIGH ENTROPY ALLOY CATALYST FOR PRODUCTION OF HYDROGEN

#6
20250042737
2025-02-06

PURIFICATION METHOD AND SYSTEM FOR AQUEOUS HYDROGEN PEROXIDE SOLUTION

#7
20250042734
2025-02-06

METHANE REFORMING REACTION SYSTEM

#8
20250033961
2025-01-30

APPARATUSES AND METHODS FOR HYDROGEN PRODUCTION

#9
20240409409
2024-12-12

PROCESS FOR PURIFICATION OF HELIUM TO VERY HIGH PURITY

#10
20240391769
2024-11-28

METHODS AND APPARATUSES FOR HYDROGEN PRODUCTION

#11
20240343578
2024-10-17

HELIUM SEPARATION AND RECOVERY PROCESS

#12
20240327873
2024-10-03

PROCESS REDUCING ENERGY CONSUMPTION IN GAS FERMENTATION

#13
20240279057
2024-08-22

Steam-Hydrocarbon Reforming with Low Steam Production

#14
20240228285
2024-07-11

PROCESS FOR PRODUCING VERY HIGH PURITY HELIUM OR HYDROGEN

#15
20240217818
2024-07-04

METHOD AND EQUIPMENT FOR PRODUCING HYDROGEN-ENRICHED GAS

#16
20240208888
2024-06-27

PROCESS AND PLANT FOR PRODUCING METHANOL FROM SUBSTOICHIOMETRIC SYNTHESIS GAS

#17
20240132353
2024-04-25

PROCESS FOR PRODUCING VERY HIGH PURITY HELIUM OR HYDROGEN

#18
20240051824
2024-02-15

METHOD TO CONTROL SYNGAS COMPOSITION FROM AN ENGINE-BASED SYNGAS GENERATOR

#19
20240043272
2024-02-08

Methods and apparatuses for hydrogen production

#20
20240042343
2024-02-08

PRODUCTION SYSTEM, PRODUCTION METHOD AND APPLICATION OF GENERAL-PURPOSE HIGH-PURITY CHEMICALS

#21
20240009620
2024-01-11

VALUABLE GAS RECOVERY APPARATUS

#22
20230322553
2023-10-12

Apparatuses and methods for hydrogen production

#23
20230150817
2023-05-18

Oxy-fuel heated hydrogen production process

#24
20230150816
2023-05-18

Apparatuses and methods for hydrogen production

#25
20230099645
2023-03-30

METHOD

#26
20220176313
2022-06-09

AIR TREATMENT SYSTEM

#27
20210291110
2021-09-23

Method and arrangement for recovering a helium product from natural gas by membrane unit

#28
20210260522
2021-08-26

OXYGEN GENERATOR WITH IMPROVED NOISE AND VIBRATION REDUCTION, COMPACTNESS, AND USER CONVENIENCE

#29
20200398240
2020-12-24

Ammonia decomposition apparatus and system and hydrogen production method

#30
20200072529
2020-03-05

Refrigerating and freezing device

#31
20190184332
2019-06-20

HELIUM PURITY ADJUSTMENT IN A MEMBRANE SYSTEM

#32
20190176083
2019-06-13

PROCESS AND PLANT FOR OBTAINING PURE HELIUM

#33
20170320736
2017-11-09

Combined membrane-pressure swing adsorption method for recovery of helium

#34
20170296964
2017-10-19

Fluid separation module

#35
20170114294
2017-04-27

DEVICE FOR THE REMOVAL AND SEPARATION OF HELIUM ISOTOPES FROM NATURAL GAS

#36
20160228813
2016-08-11

Integrated process and apparatus for recovery of helium rich streams

#37
20160184769
2016-06-30

Three stage membrane separation with partial reflux

#38
20160115029
2016-04-28

HELIUM RECOVERY PROCESS AND APPARATUS

#39
20150080626
2015-03-19

Methods and systems for supplying hydrogen to a hydrocatalytic reaction

#40
20140370125
2014-12-18

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

#41
20130087444
2013-04-11

Process for selective removal of a product from a gaseous system

#42
20080311022
2008-12-18

METHODS AND APPARATUSES FOR AMMONIA PRODUCTION

#43
17527753
2022-12-20

Methods and systems of sub-dew point sulfur recovery with interstage membrane units