1. CPC Sections
  2. CPC Section A
  3. CPC Class A24
  4. CPC Subclass A24D
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CPC
COOPERATIVE PATENT CLASSIFICATION
​
A24D
CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES [2018-08]
WARNING

  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
A24D 1/00
Cigars; Cigarettes [2022-01]
A24D 1/002
.
{with additives, e.g. for flavouring (preparing tobacco, e.g. flavouring, A24B)} [2013-01]
A24D 1/004
.
{with a filter located between tobacco rods} [2013-01]
A24D 1/006
.
{with reinforced extremities} [2013-01]
A24D 1/008
.
{dividable} [2013-01]
A24D 1/02
.
with special covers [2013-01]
A24D 1/022
. .
{Papers for roll-your-own cigarettes (paper in general D21H)} [2013-01]
A24D 1/025
. .
{the covers having material applied to defined areas, e.g. bands for reducing the ignition propensity} [2013-01]
A24D 1/027
. .
{with ventilating means, e.g. perforations} [2013-01]
A24D 1/04
.
with mouthpieces or filter-tips (mouthpieces, filter-tips per se A24D 3/00) [2013-01]
A24D 1/042
. .
{with mouthpieces (A24D 1/047 takes precedence; mouthpieces per se A24D 3/18)} [2013-01]
A24D 1/045
. .
{with smoke filter means (A24D 1/047 takes precedence)} [2013-01]
A24D 1/047
. .
{extensible} [2013-01]
A24D 1/08
.
with lighting means (pyrophoric compositions C06C 15/00; lighters per se F23Q) [2013-01]
A24D 1/10
.
with extinguishers [2013-01]
A24D 1/12
.
with ash-retaining attachments, holders, or other equipment [2013-01]
A24D 1/14
.
Tobacco cartridges for pipes [2022-01]
A24D 1/16
.
Bands for cigars or cigarettes (machines for applying bands B65C) [2013-01]
A24D 1/18
.
Selection of materials, other than tobacco, suitable for smoking [2013-01]
A24D 1/20
.
Cigarettes specially adapted for simulated smoking devices [2022-01]
A24D 1/22
.
Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources [2022-01]
A24D 3/00
Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes (for pipes, for cigar or cigarette holders A24F 7/00) [2020-01]
A24D 3/02
.
Manufacture of tobacco smoke filters (manufacture of paper or cellulosic materials for filters D21) [2013-01]
A24D 3/0204
. .
{Preliminary operations before the filter rod forming process, e.g. crimping, blooming (A24D 3/0275 takes precedence)} [2013-01]
A24D 3/0208
. . .
{Cutting filter materials} [2013-01]
A24D 3/0212
. . .
{Applying additives to filter materials} [2013-01]
A24D 3/0216
. . . .
{the additive being in the form of capsules, beads or the like} [2013-01]
A24D 3/022
. . . .
{with liquid additives, e.g. application of plasticisers} [2013-01]
A24D 3/0225
. . . .
{with solid additives, e.g. incorporation of a granular product (A24D 3/0216 takes precedence)} [2013-01]
A24D 3/0229
. .
{Filter rod forming processes (A24D 3/0275 takes precedence)} [2013-01]
A24D 3/0233
. . .
{by means of a garniture} [2013-01]
A24D 3/0237
. . .
{by extrusion} [2013-01]
A24D 3/0241
. . .
{by compacting particulated materials} [2013-01]
A24D 3/0245
. . .
{by winding, e.g. spirally} [2013-01]
A24D 3/025
. .
{Final operations, i.e. after the filter rod forming process (A24D 3/0275 takes precedence)} [2013-01]
A24D 3/0254
. . .
{Cutting means} [2013-01]
A24D 3/0258
. . .
{Means for making grooves} [2013-01]
A24D 3/0262
. . .
{Filter extremity shaping and compacting means} [2013-01]
A24D 3/0266
. . .
{Rolling means} [2013-01]
A24D 3/027
. .
{Multiple line manufacturing devices} [2013-01]
A24D 3/0275
. .
{for filters with special features} [2013-01]
A24D 3/0279
. . .
{with tubes} [2013-01]
A24D 3/0283
. . .
{with means for a non-axial smoke flow} [2013-01]
A24D 3/0287
. . .
{for composite filters} [2013-01]
A24D 3/0291
. . .
{for hollow tipped filters, e.g. recess filters} [2013-01]
A24D 3/0295
. .
{Process control means} [2013-01]
A24D 3/04
.
Tobacco smoke filters characterised by their shape or structure [2022-01]
A24D 3/041
. .
{with adjustable means for modifying the degree of filtration of the filter} [2013-01]
A24D 3/043
. .
{with ventilation means, e.g. air dilution (A24D 3/041 takes precedence)} [2013-01]
A24D 3/045
. .
{with smoke acceleration means, e.g. impact-filters} [2013-01]
A24D 3/046
. .
{with electrical or magnetical filtering means} [2013-01]
A24D 3/048
. .
{containing additives} [2020-01]
A24D 3/06
.
Use of materials for tobacco smoke filters [2013-01]
A24D 3/061
. .
{containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking (constructional aspects of the filter A24D 3/048)} [2013-01]
A24D 3/062
. .
{characterised by structural features} [2013-01]
A24D 3/063
. . .
{of the fibers} [2013-01]
A24D 3/064
. . . .
{having non-circular cross-section} [2013-01]
A24D 3/065
. . . .
{with sheath/core of bi-component type structure} [2013-01]
A24D 3/066
. . .
{in the form of foam or having cellular structure} [2013-01]
A24D 3/067
. .
{characterised by functional properties} [2013-01]
A24D 3/068
. . .
{Biodegradable or disintegrable} [2013-01]
A24D 3/08
. .
of organic materials as carrier or major constituent (of ion exchange materials A24D 3/12) [2013-01]
A24D 3/10
. . .
of cellulose or cellulose derivatives [2013-01]
A24D 3/12
. .
of ion exchange materials [2013-01]
A24D 3/14
. .
of organic materials as additive (of ion exchange materials A24D 3/12) [2013-01]
A24D 3/145
. . .
{Microbial metabolite, e.g. enzyme} [2013-01]
A24D 3/16
. .
of inorganic materials [2013-01]
A24D 3/163
. . .
{Carbon} [2013-01]
A24D 3/166
. . .
{Silicic acid or silicates} [2013-01]
A24D 3/17
.
Filters specially adapted for simulated smoking devices [2022-01]
A24D 3/18
.
Mouthpieces for cigars or cigarettes; Manufacture thereof (A24D 3/02 takes precedence; making tipping materials for, or attaching them to mouthpieces of, cigars or cigarettes A24C 5/56; producing cigar or cigarette holders from plastics or from substances in a plastic state B29D 23/14; manufacture from metal, see the relevant subclasses of Section B) [2013-01]
A24D 3/185
. .
{with a straw-like insert, e.g. Virginia cigars} [2013-01]