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CPC Main Group Additional Only
F01N 2340/00

Dimensional characteristics of the exhaust system, e.g. length, diameter or volume of the exhaust apparatus; Spatial arrangements of exhaust apparatuses

Filing statistics

CPC F01N 2340/00 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

4 direct subcodes

Child Classifications

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  • F01N 2340/02 Distance of the exhaust apparatus to the engine or between two exhaust apparatuses
  • F01N 2340/04 Arrangement of the exhaust system relative to a vehicle or parts thereof
  • F01N 2340/06 Arrangement of the exhaust apparatus relative to the turbine of a turbocharger
  • F01N 2340/08 Series-connected exhaust apparatuses mounted in a side-by-side spatial arrangement, e.g. U- or S-shaped

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