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PCE
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DIFF Subgroup
F02B 23/04

the combustion space being subdivided into two or more chambers (with pre-combustion chambers F02B19/00)

Introduced: September 1968

Title

Titles differ between systems:

IPC: the combustion space being subdivided into two or more chambers

CPC: the combustion space being subdivided into two or more chambers (with pre-combustion chambers F02B19/00)

Full Title

Full titles differ between systems:

IPC:

Other engines characterised by special shape or construction of combustion chambers to improve operation > with compression ignition > the combustion space being subdivided into two or more chambers

CPC:

Other engines characterised by special shape or construction of combustion chambers to improve operation (engines with incandescent chambers F02B9/08) > with compression ignition > the combustion space being subdivided into two or more chambers (with pre-combustion chambers F02B19/00)

No child classifications to compare. This is a leaf node in both 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