Structure of catalyst support or particle filter

Filing statistics

CPC F01N 2330/00 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

11 direct subcodes

Child Classifications

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F01N 2330/02 Metallic plates or honeycombs, e.g. superposed or rolled-up corrugated or otherwise deformed sheet metal
F01N 2330/06 Ceramic, e.g. monoliths
F01N 2330/08 Granular material
F01N 2330/10 Fibrous material, e.g. mineral or metallic wool
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 2330/30 Honeycomb supports characterised by their structural details
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

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