IPC Subclass
B64C AEROPLANES; HELICOPTERS
Introduced: September 1968
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- AIRCRAFT; AVIATION; COSMONAUTICS
- Subclass:
- AEROPLANES; HELICOPTERS
Description
B64C covers the design, construction, and component technologies of aeroplanes and helicopters, including fixed-wing aircraft structures, fuselage design, wing systems, landing gear, and rotor mechanisms. This subclass encompasses aircraft control systems, stability features, power plant installations, and aerodynamic configurations specific to these aircraft types. Related technologies such as aircraft propulsion, avionics, and auxiliary systems are classified elsewhere within B64, while space vehicles and cosmonautical applications fall under separate divisions.
Related Keywords
AIRCRAFT constructionscontrolling AIRCRAFTkinds of AIRCRAFTAUTOGIROSFAIRINGS of aircraftaircraft FLAP(S)HOVERING of aircraftLIFE-SAVING in aircraftSEA planesSTEERING of aircraft in flight
22 direct subcodes
Child Classifications
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- B64C 1/00 Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like
- B64C 11/00 Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C 13/00 Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers
- B64C 15/00 Attitude, flight direction or altitude control by jet reaction
- B64C 17/00 Aircraft stabilisation not otherwise provided for
- B64C 19/00 Aircraft control not otherwise provided for
- B64C 21/00 Influencing air flow over aircraft surfaces by affecting boundary layer flow
- B64C 23/00 Influencing air flow over aircraft surfaces, not otherwise provided for
- B64C 25/00 Alighting gear
- B64C 27/00 Rotorcraft; Rotors peculiar thereto
- B64C 29/00 Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft
- B64C 3/00 Wings
- B64C 30/00 Supersonic type aircraft
- B64C 31/00 Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft
- B64C 33/00 Ornithopters
- B64C 35/00 Flying-boats; Seaplanes
- B64C 37/00 Convertible aircraft
- B64C 39/00 Aircraft not otherwise provided for
- B64C 5/00 Stabilising surfaces
- B64C 7/00 Structures or fairings not otherwise provided for
Top Applicants
Top 10 applicants by patent filingsfor class B64, 2013–2023, worldwide · Source: EPO PATSTAT
- BOEING COMPANY US 8,583
- AIRBUS OPERATIONS DE 3,430
- AIRBUS OPERATIONS FR 2,757
- HAMILTON SUNDSTRAND US 2,332
- SZ DJI TECHNOLOGY COMPANY CN 2,109
- AIRBUS OPERATIONS GB 2,084
- GOODRICH CORPORATION US 2,053
- XI'AN AIRCRAFT DESIGN INSTITUTE OF AVIATION INDUSTRY CORPORATION OF CHINA 1,938
- BOEING COMPANY 1,816
- NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS 1,589