F01D 5/12 Blades (; blade roots F01D5/30; rotors with blades adjustable in operation F01D7/00; stator blades F01D9/02)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Blades
CPC: Blades (; blade roots F01D5/30; rotors with blades adjustable in operation F01D7/00; stator blades F01D9/02)
Full Title
Full titles differ between systems:
Blades; Blade-carrying members; Heating, heat-insulating, cooling, or antivibration means on the blades or the members > Blades
Blades; Blade-carrying members (nozzle boxes F01D9/02); Heating, heat-insulating, cooling or antivibration means on the blades or the members > Blades (; blade roots F01D5/30; rotors with blades adjustable in operation F01D7/00; stator blades F01D9/02)
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F01D 5/14 Form or construction (selecting particular materials, measures against erosion or corrosion F01D5/28) +3 CPC IPC+CPC Available in IPC and CPC
- F01D 5/26 Antivibration means not restricted to blade form or construction or to blade-to-blade connections IPC+CPC Available in IPC and CPC
- F01D 5/28 Selecting particular materials; Measures against erosion or corrosion +4 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class F01,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 8,496
- UNITED TECHNOLOGIES CORPORATION (UTC) US 7,291
- SAFRAN AIRCRAFT ENGINES FR 5,503
- TOYOTA MOTOR CORPORATION 4,556
- SIEMENS DE 3,992
- HYUNDAI MOTOR COMPANY KR 3,929
- RAYTHEON TECHNOLOGIES CORPORATION US 3,534
- FORD GLOBAL TECHNOLOGIES US 3,407
- TOYOTA MOTOR CORPORATION JP 3,042
- WEICHAI POWER COMPANY 2,888
Top Applicants (CPC)
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