Patents-Review.com
ClassID:

5573 ⎘

A24D3/166 - 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; Use of materials for tobacco smoke filters of inorganic materials Silicic acid or silicates

Recent Application in this class:
#1
20250351867
2025-11-20

METHOD AND APPARATUS FOR CONICAL SMOKING TIPS

 #2
20240188631
2024-06-13

HARM-REDUCING CIGARETTE FILTER, PREPARATION METHOND AND APPLICATION THEREOF

 #3
20200281256
2020-09-10

GRANULAR CIGARETTE

 #4
20200281253
2020-09-10

Cone Shaped Cigarette With Hard Tip and Method For Manufacture

 #5
20190174818
2019-06-13

Multi-stage filtration device

 #6
20190014817
2019-01-17

Cigar holder assembly for a smoke machine

 #7
20160286855
2016-10-06

Adsorbent materials

 #8
20160128380
2016-05-12

Amphiphile-modified sorbents in smoking articles and filters

 #9
20120247491
2012-10-04

SMOKING ARTICLES COMPRISING COPPER-EXCHANGED MOLECULAR SIEVES

 #10
20120132219
2012-05-31

Cigarette filter

 #11
20110017223
2011-01-27

Amphiphile-modified sorbents in smoking articles and filters

 #12
20100186759
2010-07-29

CIGARETTE FILTER

 #13
20100058925
2010-03-11

CAPTURE OF TOXINS AND ENVIRONMENTAL CONTAMINANTS

 #14
20100043813
2010-02-25

High cohesive strength composite materials and, E.G., cigarette filters shaped therefrom

 #15
20090050557
2009-02-26

HIGH-BOND STRENGTH SILICON AND A METHOD FOR THE PRODUCTION AND USE THEREOF

 #16
20090044816
2009-02-19

Smoking article having carbon dioxide delivery technology for sensorially improved carbon filtration and method of smoking

 #17
20070295347
2007-12-27

Surface-modified porous substrates

 #18
20060260626
2006-11-23

Activated carbons with molecular sieve membranes and their use as adsorbents in smoking articles

 #19
20060174899
2006-08-10

Composite materials and their use in smoking articles

 #20
20060130861
2006-06-22

Flavor carrier for use in smoking articles

 #21
20060130855
2006-06-22

Smoking article with mercaptopropyl functionalized sorbent and method

 #22
20060112964
2006-06-01

Capsuled adsorbent flavored filter

 #23
20050268925
2005-12-08

Application of mesoporous molecular sieves as selective smoke filtration additives

 #24
20050205102
2005-09-22

Method of making surface modified silica gel

 #25
20050133054
2005-06-23

Composite mesoporous/microporous materials and their use in smoking articles for removing certain gas phase constituents from tobacco smoke

 #26
20050133053
2005-06-23

Smoking articles comprising copper-exchanged molecular sieves

 #27
20050133052
2005-06-23

Cigarette filter

 #28
20050133051
2005-06-23

Composite materials and their use in smoking articles

 #29
20050133050
2005-06-23

Thiol-functionalized sorbent for smoking articles and filters for the removal of heavy metals from mainstream smoke

 #30
20050133049
2005-06-23

Smoking articles and filters including zeolite molecular sieve sorbent

 #31
20050133048
2005-06-23

Amphiphile-modified sorbents in smoking articles and filters

 #32
20050133047
2005-06-23

Smoking articles and filters with carbon-coated molecular sieve sorbent

 #33
20050066984
2005-03-31

Filtered cigarette incorporating an adsorbent material

 #34
20050066983
2005-03-31

Filtered cigarette incorporating an adsorbent material