Use of materials for tobacco smoke filters

Introduced: January 1980

Full Title

Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes > Use of materials for tobacco smoke filters

Of 7 combined children, 4 exist in both systems.

3 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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A24D 3/061 CPC only CPC only
A24D 3/062 +2 CPC CPC only CPC only
A24D 3/067 +1 CPC CPC only CPC only
A24D 3/08 of organic materials as carrier or major constituent (of ion exchange materials A24D3/12) since 1980 IPC+CPC Available in IPC and CPC
A24D 3/12 of ion exchange materials since 1980 IPC+CPC Available in IPC and CPC
A24D 3/14 of organic materials as additive (of ion exchange materials A24D3/12) since 1980 +1 CPC IPC+CPC Available in IPC and CPC
A24D 3/16 of inorganic materials since 1980 +2 CPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class A24,2013–2023, worldwide · Source: EPO PATSTAT

PHILIP MORRIS PRODUCTS CH 13,201
NICOVENTURES TRADING GB 7,482
KT & G CORPORATION KR 4,818
JAPAN TOBACCO JP 4,636
JT INTERNATIONAL CH 3,806
CHINA TOBACCO YUNNAN INDUSTRIAL COMPANY 2,490
CHINA TOBACCO HENAN INDUSTRIAL 2,453
CHINA TOBACCO HUBEI INDUSTRIAL 2,344
BRITISH AMERICAN TOBACCO (INVESTMENTS) GB 2,199
SHENZHEN FIRST UNION TECHNOLOGY COMPANY 2,097

Top Applicants (CPC)

Class A24,2013–2023, worldwide · Source: EPO PATSTAT

PHILIP MORRIS PRODUCTS CH 13,994
NICOVENTURES TRADING GB 7,744
KT & G CORPORATION KR 4,857
JAPAN TOBACCO JP 4,561
JT INTERNATIONAL CH 3,946
BRITISH AMERICAN TOBACCO (INVESTMENTS) GB 2,374
ALTRIA CLIENT SERVICES US 2,122
RAI STRATEGIC HOLDINGS US 2,061
NICOVENTURES TRADING 1,940
PHILIP MORRIS PRODUCTS 1,855