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IPC Subgroup
F02B 19/02

the chamber being periodically isolated from its cylinder

Introduced: September 1968

Last revised: January 2006

Full Title

Engines characterised by precombustion chambers > the chamber being periodically isolated from its cylinder

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Subclass:
INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL

Filing statistics

IPC F02B 19/02 belongs to the parent subclass F02B, which recorded 90,899 patent applications worldwide between 2013 and 2023. Annual filings declined from 8,536 in 2013 to 5,129 in 2023 (-40%), peaking at 9,910 applications in 2015. The most active applicants in class F02 are TOYOTA MOTOR CORPORATION (8,687 applications), ROBERT BOSCH (8,328 applications) and FORD GLOBAL TECHNOLOGIES (7,423 applications).

Source: EPO PATSTAT, worldwide filings

1 direct subcode

Child Classifications

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  • F02B 19/04 the isolation being effected by a protuberance on piston or cylinder head

Top Applicants

Top 10 applicants by patent filingsfor 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