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DIFF Subgroup
F02B 57/02

Fuel or combustion-air supply (cylinder-charge admission or exhaust control F02B57/04)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Fuel or combustion-air supply

CPC: Fuel or combustion-air supply (cylinder-charge admission or exhaust control F02B57/04)

Full Title

Full titles differ between systems:

IPC:

Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons > Fuel or combustion-air supply

CPC:

Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons > Fuel or combustion-air supply (cylinder-charge admission or exhaust control F02B57/04)

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