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DIFF Subgroup
F02K 7/10

characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Plants in which the working-fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof > characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines

CPC:

Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof (rocket-engine plants F02K9/00) > characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines

Of 6 combined children, 5 exist in both systems.

1 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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  • F02K 7/105 CPC only CPC only
  • F02K 7/12 Injection-induction jet engines since 1980 IPC+CPC Available in IPC and CPC
  • F02K 7/14 with external combustion, e.g. scram-jet engines since 1980 IPC+CPC Available in IPC and CPC
  • F02K 7/16 Composite ram-jet/turbo-jet engines since 1980 IPC+CPC Available in IPC and CPC
  • F02K 7/18 Composite ram-jet/rocket engines since 1980 IPC+CPC Available in IPC and CPC
  • F02K 7/20 Composite ram-jet/pulse-jet engines since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F02,2013–2023, worldwide · Source: EPO PATSTAT

  1. TOYOTA MOTOR CORPORATION 8,687
  2. ROBERT BOSCH DE 8,328
  3. FORD GLOBAL TECHNOLOGIES US 7,423
  4. GE (GENERAL ELECTRIC COMPANY) US 5,732
  5. UNITED TECHNOLOGIES CORPORATION (UTC) US 5,592
  6. HYUNDAI MOTOR COMPANY KR 4,699
  7. TOYOTA MOTOR CORPORATION JP 4,541
  8. DENSO CORPORATION 3,711
  9. WEICHAI POWER COMPANY 3,486
  10. SAFRAN AIRCRAFT ENGINES FR 3,249

Top Applicants (CPC)

Class F02,2013–2023, worldwide · Source: EPO PATSTAT

  1. ROBERT BOSCH DE 8,801
  2. FORD GLOBAL TECHNOLOGIES US 8,171
  3. GE (GENERAL ELECTRIC COMPANY) US 6,957
  4. HYUNDAI MOTOR COMPANY KR 5,390
  5. UNITED TECHNOLOGIES CORPORATION (UTC) US 5,250
  6. TOYOTA MOTOR CORPORATION JP 5,214
  7. TOYOTA MOTOR CORPORATION 4,149
  8. DENSO CORPORATION JP 3,400
  9. KIA MOTORS CORPORATION KR 3,388
  10. SAFRAN AIRCRAFT ENGINES FR 3,332