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CPC Main Group Additional Only
F01N 2410/00

By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device

Filing statistics

CPC F01N 2410/00 belongs to the parent subclass F01N, which recorded 80,748 patent applications worldwide between 2013 and 2023. Annual filings declined from 7,362 in 2013 to 4,058 in 2023 (-45%), peaking at 9,617 applications in 2017. The most active applicants in class F01 are GE (GENERAL ELECTRIC COMPANY) (9,989 applications), UNITED TECHNOLOGIES CORPORATION (UTC) (8,110 applications) and SAFRAN AIRCRAFT ENGINES (6,248 applications).

Source: EPO PATSTAT, worldwide filings

8 direct subcodes

Child Classifications

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  • F01N 2410/02 in case of high temperature, e.g. overheating of catalytic reactor
  • F01N 2410/03 in case of low temperature
  • F01N 2410/04 during regeneration period, e.g. of particle filter
  • F01N 2410/06 at cold starting
  • F01N 2410/08 in case of clogging, e.g. of particle filter
  • F01N 2410/10 for reducing flow resistance, e.g. to obtain more engine power
  • F01N 2410/12 in case of absorption, adsorption or desorption of exhaust gas constituents
  • F01N 2410/14 in case of excessive pressure, e.g. using a safety valve

Top Applicants

Top 10 applicants by patent filingsfor class F01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 9,989
  2. UNITED TECHNOLOGIES CORPORATION (UTC) US 8,110
  3. SAFRAN AIRCRAFT ENGINES FR 6,248
  4. HYUNDAI MOTOR COMPANY KR 4,530
  5. SIEMENS DE 4,461
  6. FORD GLOBAL TECHNOLOGIES US 4,029
  7. RAYTHEON TECHNOLOGIES CORPORATION US 3,947
  8. TOYOTA MOTOR CORPORATION JP 3,734
  9. GE (GENERAL ELECTRIC COMPANY) 3,415
  10. SCHAEFFLER TECHNOLOGIES & COMPANY DE 3,063