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IPC Subgroup
A24D 3/16

of inorganic materials

Introduced: January 1980

Last revised: January 2006

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 inorganic materials

Classification Context

Section:
HUMAN NECESSITIES
Class:
TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
Subclass:
CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES

Filing statistics

IPC A24D 3/16 belongs to the parent subclass A24D, which recorded 29,043 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,199 in 2013 to 2,710 in 2023 (+23%), peaking at 3,556 applications in 2021. The most active applicants in class A24 are PHILIP MORRIS PRODUCTS (13,201 applications), NICOVENTURES TRADING (7,482 applications) and KT & G CORPORATION (4,818 applications).

Source: EPO PATSTAT, worldwide filings

Top Applicants

Top 10 applicants by patent filingsfor class A24, 2013–2023, worldwide · Source: EPO PATSTAT

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