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CPC Main Group Additional Only
F01N 2330/00

Structure of catalyst support or particle filter

11 direct subcodes

Child Classifications

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  • F01N 2330/06 Ceramic, e.g. monoliths
  • F01N 2330/08 Granular material
  • F01N 2330/12 Metallic wire mesh fabric or knitting
  • F01N 2330/14 Sintered material
  • F01N 2330/18 Composite material
  • F01N 2330/20 Plastics, e.g. polymers, polyester, polyurethane
  • F01N 2330/22 Metal foam
  • F01N 2330/60 Discontinuous, uneven properties of filter material, e.g. different material thickness along the longitudinal direction; Higher filter capacity upstream than downstream in same housing

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