AEROPLANES; HELICOPTERS

Introduced: September 1968

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.

Of 26 combined children, 22 exist in both systems.

4 codes are CPC-only extensions.

Note: 4 CPC extensions are marked as secondary classification only.

5 shared codes have differing titles between IPC and CPC.

Child Classifications

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B64C 1/00 Fuselages; Constructional features common to fuselages, wings, stabilising surfaces or the like +5 CPC IPC+CPC Available in IPC and CPC
B64C 11/00 Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft +7 CPC IPC+CPC Available in IPC and CPC
B64C 13/00 Control systems or transmitting systems for actuating flying-control surfaces, lift-increasing flaps, air brakes, or spoilers IPC+CPC Available in IPC and CPC
B64C 15/00 Attitude, flight direction, or altitude control by jet reaction IPC+CPC Available in IPC and CPC
B64C 17/00 Aircraft stabilisation not otherwise provided for IPC+CPC Available in IPC and CPC
B64C 19/00 Aircraft control not otherwise provided for IPC+CPC Available in IPC and CPC
B64C 21/00 Influencing air flow over aircraft surfaces by affecting boundary layer flow IPC+CPC Available in IPC and CPC
B64C 2203/00 Flying model aircraft, flying toy aircraft 2nd only CPC only CPC only
B64C 2211/00 Modular constructions of airplanes or helicopters 2nd only CPC only CPC only
B64C 2220/00 Active noise reduction systems 2nd only CPC only CPC only
B64C 2230/00 Boundary layer controls 2nd only +14 CPC CPC only CPC only
B64C 23/00 Influencing air flow over aircraft surfaces, not otherwise provided for +1 CPC IPC+CPC Available in IPC and CPC
B64C 25/00 Alighting gear (air-cushion alighting gear B60V3/08) +1 CPC IPC+CPC Available in IPC and CPC
B64C 27/00 Rotorcraft; Rotors peculiar thereto +3 CPC IPC+CPC Available in IPC and CPC
B64C 29/00 Aircraft capable of landing or taking-off vertically, e.g. vertical take-off and landing [VTOL] aircraft (rotorcraft B64C27/00) +2 CPC IPC+CPC Available in IPC and CPC
B64C 3/00 Wings (ornithopter wings B64C33/02) IPC+CPC Available in IPC and CPC
B64C 30/00 Supersonic type aircraft since 1980 IPC+CPC Available in IPC and CPC
B64C 31/00 Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft IPC+CPC Available in IPC and CPC
B64C 33/00 Ornithopters IPC+CPC Available in IPC and CPC
B64C 35/00 Flying-boats; Seaplanes +5 CPC −1 IPC IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class B64,2013–2023, worldwide · Source: EPO PATSTAT

BOEING COMPANY US 9,861
AIRBUS OPERATIONS DE 3,766
AIRBUS OPERATIONS FR 3,112
SZ DJI TECHNOLOGY COMPANY CN 2,840
HAMILTON SUNDSTRAND US 2,753
GOODRICH CORPORATION US 2,427
AIRBUS OPERATIONS GB 2,356
BOEING COMPANY 2,057
SAFRAN AIRCRAFT ENGINES FR 1,815
AIRBUS OPERATIONS 1,723