ClassID:

5551

A24D3/04 - page 2 - CPC Classification

Classification description:

Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes Tobacco smoke filters characterised by their shape or structure

Recent Application in this class:
#301
20110023900
2011-02-03

TOBACCO SMOKE FILTER

#302
20100288293
2010-11-18

SMOKING ARTICLE WITH IMPROVED FLOW RESTRICTION ELEMENT

#303
20100163064
2010-07-01

TEMPLATED CARBON MONOLITHIC TUBES WITH SHAPED MICRO-CHANNELS AND METHOD FOR MAKING THE SAME

#304
20100108085
2010-05-06

Smoking Article Filter

#305
20100108084
2010-05-06

FILTERED CIGARETTE WITH DIFFUSE TIPPING MATERIAL

#306
20100006112
2010-01-14

FILTER INCLUDING RANDOMLY-ORIENTED FIBERS FOR REDUCTION OF PARTICLE BREAKTHROUGH

#307
20090007925
2009-01-08

Smoking article filter having liquid additive containing tubes therein

#308
20080314400
2008-12-25

Filter including electrostatically charged fiber material

#309
20080314399
2008-12-25

Smoking article

#310
20080283071
2008-11-20

Cigarette Filter and Method of Its Manufacturing

#311
20080245377
2008-10-09

Cigarette comprising dark air-cured tobacco

#312
20080168997
2008-07-17

Cigarette Filter For Reducing Tar And Decreasing Toxicity And Equipment For Producing It

#313
20080149120
2008-06-26

Cigarette filter incorporating nanofibers

#314
20080149119
2008-06-26

Smoking articles enhanced to deliver additives incorporated within electrospun microfibers and nonofibers, and related methods

#315
20080029115
2008-02-07

Method of production of a cigarette filter

#316
20070181141
2007-08-09

Specifically-defined smoking article with activated carbon sorbent and sodium bicarbonate-treated fibers and method of treating mainstream smoke

#317
20070102016
2007-05-10

Filter tip

#318
20070074733
2007-04-05

Cigarettes having hollow fibers

#319
20070000508
2007-01-04

Templated carbon monolithic tubes with shaped micro-channels and method for making the same

#320
20070000507
2007-01-04

Templated carbon fibers and their application

#321
20060289022
2006-12-28

Tobacco smoke filter

#322
20060225753
2006-10-12

Tobacco smoke filter and tobacco blend for altering mainstream smoke

#323
20060150991
2006-07-13

Transparent extraction filter cigarette

#324
20060130862
2006-06-22

Smoking articles and smokable filler materials therefor

#325
20060102188
2006-05-18

Filter tip cigarettes and method of manufacturing same

#326
20060011206
2006-01-19

Smokers filter

#327
20050199251
2005-09-15

Method for producing filter cigarettes

#328
20050145260
2005-07-07

Filter for smoking

#329
20050139223
2005-06-30

Cigarette filter incorporating nanofibers

#330
20050076928
2005-04-14

Cigarette filter

#331
15000992
2019-09-10

Portable smoke filtering system

#332
14606359
2017-10-31

Cigarette smoke-filtering device