C01B2210/0042 - CPC Classification Index

ClassID:

85356 ⎘

C01B2210/0042 - CPC Classification

Classification description:

Purification or separation of specific gases Making ultrapure specific gas

Recent Application in this class:

20260035243

2026-02-05

SYSTEM AND METHOD FOR PRODUCTION OF ULTRA-HIGH PURITY OXYGEN

20250333304

2025-10-30

METHOD FOR PRODUCING HIGH-PURITY HYDROCHLORIC ACID

20240228286

2024-07-11

PURIFICATION APPARATUS AND PURIFICATION METHOD FOR NON-METAL SEMICONDUCTOR MATERIAL

20230382735

2023-11-30

HELIUM RECOVERY PROCESS

20230227310

2023-07-20

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

20230212008

2023-07-06

HYDROGEN SEPARATION FILTER AND METHOD FOR MANUFACTURING HYDROGEN SEPARATION FILTER

20220411265

2022-12-29

Production method for high-purity hydrogen chloride gas

20220152548

2022-05-19

Process for separation of hydrogen and oxygen

20200353403

2020-11-12

Process for separation of hydrogen and oxygen

#10

20170333841

2017-11-23

Gas purifier

#11

20150056113

2015-02-26

Gas purifier

#12

20110259194

2011-10-27

System for preventing contaminants from reaching a gas purifier

#13

20090120294

2009-05-14

System for preventing contaminants from reaching a gas purifier

#14

20090107331

2009-04-30

Method and apparatus for pressure swing adsorption

#15

20050120877

2005-06-09

Purification of hydride gases

#16

20050120581

2005-06-09

Process for removing water from ammonia

#17

20050109419

2005-05-26

Gas supplying method and system