Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
A24B 15/40

having only oxygen or sulfur as hetero atoms

Introduced: January 1980

Title

Titles differ between systems:

IPC: having only oxygen or sulfur as hetero-atoms

CPC: having only oxygen or sulfur as hetero atoms

Full Title

Full titles differ between systems:

IPC:

Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form > Treatment of tobacco products or tobacco substitutes > by chemical substances > by organic substances > containing a heterocyclic ring > having only oxygen or sulfur as hetero-atoms

CPC:

Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form (A24B3/00 takes precedence) > Treatment of tobacco products or tobacco substitutes > by chemical substances > by organic substances > containing a heterocyclic ring > having only oxygen or sulfur as hetero atoms

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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

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