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DIFF Subgroup
F23Q 2/34

Component parts or accessories

Introduced: September 1968

Full Title

Lighters containing fuel, e.g. for cigarettes > Component parts or accessories

Of 9 combined children, 8 exist in both systems.

1 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • F23Q 2/345 CPC only CPC only
  • F23Q 2/40 Cover fastenings IPC+CPC Available in IPC and CPC
  • F23Q 2/42 Fuel containers; Closures for fuel containers IPC+CPC Available in IPC and CPC
  • F23Q 2/44 Wicks; Wick guides or fastenings IPC+CPC Available in IPC and CPC
  • F23Q 2/46 Friction wheels; Arrangement of friction wheels IPC+CPC Available in IPC and CPC
  • F23Q 2/48 Flint (composition, manufacture C06C15/00); Guides for, or arrangements of, flints IPC+CPC Available in IPC and CPC
  • F23Q 2/50 Protecting coverings IPC+CPC Available in IPC and CPC
  • F23Q 2/52 Filling devices (in general B67D) IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F23,2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 2,124
  2. XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 1,369
  3. NINGBO FOTILE KITCHENWARE COMPANY 1,363
  4. SIEMENS DE 997
  5. UNITED TECHNOLOGIES CORPORATION (UTC) US 937
  6. GE (GENERAL ELECTRIC COMPANY) 898
  7. VATTI 815
  8. CHINESE ACADEMY OF SCIENCES 719
  9. RINNAI COMPANY 708
  10. MITSUBISHI HITACHI POWER SYSTEMS 670

Top Applicants (CPC)

Class F23,2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 2,581
  2. UNITED TECHNOLOGIES CORPORATION (UTC) US 1,180
  3. SIEMENS DE 1,157
  4. GE (GENERAL ELECTRIC COMPANY) 994
  5. XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 769
  6. MITSUBISHI HEAVY INDUSTRIES JP 701
  7. MITSUBISHI HITACHI POWER SYSTEMS JP 695
  8. RAYTHEON TECHNOLOGIES CORPORATION US 587
  9. NINGBO FOTILE KITCHENWARE COMPANY 543
  10. GENERAL ELECTRIC TECHNOLOGY CH 490