ClassID:

29680

B01D53/268 - page 2 - CPC Classification

Classification description:

Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,; Drying gases or vapours by diffusion

Recent Application in this class:
#301
20080257154
2008-10-23

Membrane air dryer with pre-charge volume

#302
20080223212
2008-09-18

Reducing moisture content of compressed air

#303
20080190293
2008-08-14

Dryer unit for compressed air and other gaseous media

#304
20080178735
2008-07-31

Integral sweep controller for gas membrane separation device

#305
20080141859
2008-06-19

Method for dehumidifying room air

#306
20080115666
2008-05-22

GAS SEPARATION USING MOLECULAR SIEVE SSZ-74

#307
20080087168
2008-04-17

Air dryer with pre-filter

#308
20080087167
2008-04-17

Membrane air dryer with sweep air control

#309
20080085437
2008-04-10

Pleated heat and humidity exchanger with flow field elements

#310
20080072754
2008-03-27

Membrane module

#311
20080060517
2008-03-13

Membrane air dryer and sweep valve

#312
20080060327
2008-03-13

Vent filter with membrane

#313
20080034966
2008-02-14

Versatile dehumidification process and apparatus

#314
20070277673
2007-12-06

Sweep control for membrane dryers

#315
20070213557
2007-09-13

Separator, reactor, and method for producing aromatic carboxylic acids

#316
20070186768
2007-08-16

RECOVERY OF WATER VAPOR USING A WATER VAPOR PERMEABLE MIXED ION CONDUCTING MEMBRANE

#317
20070144344
2007-06-28

Gas separation using molecular sieve SSZ-74

#318
20070113738
2007-05-24

PURGE-CONTROL POLYMER-MEMBRANE-TYPE AIR DRIER SYSTEM

#319
20070107594
2007-05-17

Parallel-plate diffusion gas dehumidifier and methods for use

#320
20070084591
2007-04-19

Device for moisture exchange between gas flows

#321
20070039464
2007-02-22

Dry gas production systems for pressurizing a space and methods of operating such systems to produce a dry gas stream

#322
20070031302
2007-02-08

Method and apparatus for purifying a gas

#323
20060288870
2006-12-28

Liquid-gas separator for direct liquid feed fuel cell

#324
20060278359
2006-12-14

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

#325
20060254424
2006-11-16

Method and system of purging water in air dryer of air pressure circuit

#326
20060254227
2006-11-16

Filter for venting enclosures, for example containing electrical equipment, such as vehicle lighting units, and exposed to moisture or atmospheric agents

#327
20060245993
2006-11-02

Process for removal of pollutants

#328
20060231099
2006-10-19

SYSTEM AND METHOD FOR MAKING DRY AND HYDROCARBON-FREE COMPRESSED AIR

#329
20060230935
2006-10-19

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

#330
20060228597
2006-10-12

Method for humidifying a reactant stream for a fuel cell

#331
20060147774
2006-07-06

Humidifier for fuel cell system

#332
20060135811
2006-06-22

Separator for producing aromatic carboxylic acids

#333
20060112827
2006-06-01

Humidifier and a method for producing the same

#334
20060086249
2006-04-27

Membrane-based reservoir dryer

#335
20060065588
2006-03-30

Hollow fiber module

#336
20060000357
2006-01-05

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

#337
20050284290
2005-12-29

Separation of water from Fischer-Tropsch product

#338
20050279209
2005-12-22

Hollow fiber membrane air drier

#339
20050252377
2005-11-17

Air dehydration membrane

#340
20050247619
2005-11-10

Moisture exchange module having bundle of moisture permeable hollow fibre membranes

#341
20050247200
2005-11-10

Moisture exchange module containing a bundle of moisture-permeable hollow fiber membranes

#342
20050241482
2005-11-03

Moisture exchange module having a bundle of moisture-permeable hollow fibre membranes

#343
20050235826
2005-10-27

Air separation system using dehydration membrane for pretreatment of compressed air

#344
20050191530
2005-09-01

Method for humidifying a reactant stream for a fuel cell

#345
20050173044
2005-08-11

Method of constructing a desiccant container

#346
20050072425
2005-04-07

Oxygen humidifier

#347
20050072303
2005-04-07

Device for dehumidifying room air

#348
20050039467
2005-02-24

Membrane desiccation heat pump

#349
18739856
2025-11-18

Graphene oxide composite membranes

#350
18244564
2024-04-16

Fog and rain collector

#351
17705586
2024-07-30

Aircraft membrane dehydration cooling architecture

#352
15484978
2019-03-12

System and method for inhibiting water contamination in fuel holding tank