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IPC Subgroup
F02M 25/1

adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone

Introduced: September 1968

Last revised: January 2006

Full Title

Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture > adding acetylene, non-waterborne hydrogen, non-airborne oxygen, or ozone

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Subclass:
SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF

1 direct subcode

Child Classifications

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  • F02M 25/12 the apparatus having means for generating such gases

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