IPC Classification

Class code (prefix) Descriptions Number of results
B64D 1/00 Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
B64D 1/02 Dropping, ejecting, or releasing articles
B64D 1/04 Dropping, ejecting, or releasing articles the articles being explosive, e.g. bombs
B64D 1/06 Bomb releasing; Bomb doors
B64D 1/08 Dropping, ejecting, or releasing articles the articles being load-carrying devices
B64D 1/10 Stowage arrangements for the devices in aircraft
B64D 1/12 Releasing
B64D 1/14 Absorbing landing shocks
B64D 1/16 Dropping or releasing powdered, liquid or gaseous matter, e.g. for fire-fighting
B64D 1/18 Dropping or releasing powdered, liquid or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
B64D 1/20 Dropping or releasing powdered, liquid or gaseous matter, e.g. for fire-fighting for sky-writing
B64D 1/22 Taking-up articles from earth's surface
B64D 3/00 Aircraft adaptations to facilitate towing or being towed
B64D 3/02 Aircraft adaptations to facilitate towing or being towed for towing targets
B64D 5/00 Aircraft transported by aircraft, e.g. for release or reberthing during flight
B64D 7/00 Arrangement of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft
B64D 7/02 Arrangement of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft the armaments being firearms
B64D 7/04 Arrangement of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft the armaments being firearms fixedly mounted
B64D 7/06 Arrangement of military equipment, e.g. armaments, armament accessories, or military shielding, in aircraft; Adaptations of armament mountings for aircraft the armaments being firearms movably mounted
B64D 7/08 Arrangement of rocket launchers
B64D 9/00 Equipment for handling freight; Equipment for facilitating passenger embarkation or the like
B64D 10/00 Flight suits
B64D 11/00 Passenger or crew accommodation; Flight-deck installations not otherwise provided for
B64D 11/02 Toilet fittings
B64D 11/04 Galleys
B64D 11/06 Arrangements or adaptations of seats
B64D 13/00 Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space
B64D 13/02 Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being pressurised
B64D 13/04 Automatic control of pressure
B64D 13/06 Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned
B64D 13/08 Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space the air being conditioned the air being heated or cooled
B64D 15/00 De-icing or preventing icing on exterior surfaces of aircraft
B64D 15/02 De-icing or preventing icing on exterior surfaces of aircraft by ducted hot gas or liquid
B64D 15/04 Hot gas application
B64D 15/06 Liquid application
B64D 15/08 Liquid application exuded from surface
B64D 15/10 Liquid application sprayed over surface
B64D 15/12 De-icing or preventing icing on exterior surfaces of aircraft by electric heating
B64D 15/14 De-icing or preventing icing on exterior surfaces of aircraft by electric heating controlled cyclically along length of surface
B64D 15/16 De-icing or preventing icing on exterior surfaces of aircraft by mechanical means, e.g. pulsating mats or shoes attached to, or built into, surface
B64D 15/18 De-icing or preventing icing on exterior surfaces of aircraft by mechanical means, e.g. pulsating mats or shoes attached to, or built into, surface the surface being an aerofoil, rotor, or propeller
B64D 15/20 Means for detecting icing or initiating de-icing
B64D 15/22 Automatic initiation by icing detector
B64D 17/00 Parachutes
B64D 17/02 Canopy arrangement or construction
B64D 17/04 Canopy arrangement or construction formed with two or more canopies arranged about a common axis
B64D 17/06 Canopy arrangement or construction formed with two or more canopies arranged in a cluster
B64D 17/08 Secondary or shock-absorbing canopies attached to load line
B64D 17/10 Ribbon construction or the like
B64D 17/12 Canopy arrangement or construction constructed to provide variable or non-uniform porosity over area of canopy
B64D 17/14 Canopy arrangement or construction with skirt or air-deflecting panels
B64D 17/16 Canopy arrangement or construction with skirt or air-deflecting panels secured to hem of main canopy
B64D 17/18 Vent arrangement or construction
B64D 17/20 Vent arrangement or construction variable in area
B64D 17/22 Load suspension
B64D 17/24 Rigging lines
B64D 17/26 Rigging lines attached to hem of canopy
B64D 17/28 Rigging lines attached to apex of canopy
B64D 17/30 Harnesses
B64D 17/32 Construction of quick-release box
B64D 17/34 Load suspension adapted to control direction or rate of descent
B64D 17/36 Load suspension incorporating friction devices or frangible connections to reduce shock loading of canopy
B64D 17/38 Releasable fastening devices between parachute and load or pack
B64D 17/40 Packs
B64D 17/42 Packs rigid
B64D 17/44 Packs rigid forming part of load
B64D 17/46 Closing means
B64D 17/48 Packs with separate pack for extractor of auxiliary parachute
B64D 17/50 Packs formed with separate compartments for main canopy, rigging lines, or auxiliary parachute
B64D 17/52 Opening, e.g. manual
B64D 17/54 Opening, e.g. manual automatic
B64D 17/56 Opening, e.g. manual automatic responsive to barometric pressure
B64D 17/58 Opening, e.g. manual automatic responsive to time-delay mechanism
B64D 17/60 Opening, e.g. manual automatic by static line
B64D 17/62 Deployment
B64D 17/64 Deployment by extractor parachute
B64D 17/66 Deployment by extractor parachute attached to hem of main canopy
B64D 17/68 Deployment by extractor parachute attached to apex of main canopy
B64D 17/70 Deployment by springs
B64D 17/72 Deployment by explosive or inflatable means
B64D 17/74 Sequential deployment of a plurality of canopies
B64D 17/76 Deployment facilitated by method of folding or packing
B64D 17/78 Parachutes in association with other load-retarding apparatus
B64D 17/80 Parachutes in association with aircraft, e.g. for braking thereof
B64D 19/00 Non-canopied parachutes
B64D 19/02 Rotary-wing parachutes
B64D 21/00 Testing of parachutes
B64D 23/00 Training of parachutists
B64D 25/00 Emergency apparatus or devices, not otherwise provided for
B64D 25/02 Supports or holding means for living bodies
B64D 25/04 Seat modifications
B64D 25/06 Harnessing
B64D 25/08 Ejecting or escaping means
B64D 25/10 Ejector seats
B64D 25/11 Controlling attitude or direction of ejector seat or associated mechanism prior to ejection
B64D 25/12 Ejectable capsules
B64D 25/14 Inflatable escape chutes
B64D 25/16 Dinghy stowage
B64D 25/18 Flotation gear
B64D 25/20 Releasing of crash-position indicators
B64D 25/102 Propelling means, e.g. by a combination of catapult and rocket means
B64D 25/105 Propelling means, e.g. by a combination of catapult and rocket means by catapult means only
B64D 25/108 Propelling means, e.g. by a combination of catapult and rocket means by rocket means only
B64D 25/112 Controlling attitude or direction of ejector seat after ejection
B64D 25/115 Occupant restraining, positioning or protecting devices
B64D 25/118 Separation of occupant from seat after ejection
B64D 27/00 Arrangement or mounting of power plant in aircraft; Aircraft characterised thereby
B64D 27/02 Aircraft characterised by the type or position of power plant
B64D 27/04 Aircraft characterised by the type or position of power plant of piston type
B64D 27/06 Aircraft characterised by the type or position of power plant of piston type within, or attached to, wing
B64D 27/08 Aircraft characterised by the type or position of power plant of piston type within, or attached to, fuselage
B64D 27/10 Aircraft characterised by the type or position of power plant of gas-turbine type
B64D 27/12 Aircraft characterised by the type or position of power plant of gas-turbine type within, or attached to, wing
B64D 27/14 Aircraft characterised by the type or position of power plant of gas-turbine type within, or attached to, fuselage
B64D 27/16 Aircraft characterised by the type or position of power plant of jet type
B64D 27/18 Aircraft characterised by the type or position of power plant of jet type within, or attached to, wing
B64D 27/20 Aircraft characterised by the type or position of power plant of jet type within, or attached to, fuselage
B64D 27/22 Aircraft characterised by the type or position of power plant using atomic energy
B64D 27/24 Aircraft characterised by the type or position of power plant using steam, electricity, or spring force
B64D 27/26 Aircraft characterised by construction of power-plant mounting
B64D 27/30 Aircraft characterised by electric power plants
B64D 27/31 within, or attached to, wings
B64D 27/32 within, or attached to, fuselages
B64D 27/33 Hybrid electric aircraft
B64D 27/34 All-electric aircraft
B64D 27/35 Arrangements for on-board electric energy production, distribution, recovery or storage
B64D 27/40 Arrangements for mounting power plants in aircraft
B64D 27/351 using energy recovery
B64D 27/353 using solar cells
B64D 27/355 using fuel cells
B64D 27/357 using batteries
B64D 27/359 using capacitors
B64D 29/00 Power-plant nacelles, fairings, or cowlings
B64D 29/02 Power-plant nacelles, fairings, or cowlings associated with wings
B64D 29/04 Power-plant nacelles, fairings, or cowlings associated with fuselages
B64D 29/06 Attaching of nacelles, fairings, or cowlings
B64D 29/08 Inspection panels for power plants
B64D 31/00 Power plant control; Arrangement thereof
B64D 31/02 Initiating means
B64D 31/04 Initiating means actuated personally
B64D 31/06 Initiating means actuated automatically
B64D 31/08 Initiating means actuated automatically for keeping cruising speed constant
B64D 31/09 in response to power plant failure
B64D 31/10 Initiating means actuated automatically for preventing asymmetric thrust upon failure of one power plant
B64D 31/12 Initiating means actuated automatically for equalising or synchronising power plants
B64D 31/14 Transmitting means between initiating means and power plants
B64D 31/16 for electric power plants
B64D 31/18 for hybrid-electric power plants
B64D 33/00 Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for
B64D 33/02 Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of combustion air intakes
B64D 33/04 Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of exhaust outlets or jet pipes
B64D 33/08 Arrangement in aircraft of power plant parts or auxiliaries not otherwise provided for of power plant cooling systems
B64D 33/10 Radiator arrangement
B64D 33/12 Radiator arrangement of retractable type
B64D 35/00 Transmitting power from power plant to propellers or rotors; Arrangements of transmissions
B64D 35/02 Transmitting power from power plant to propellers or rotors; Arrangements of transmissions characterised by the type of power plant
B64D 35/04 Transmitting power from power plant to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors
B64D 35/06 Transmitting power from power plant to propellers or rotors; Arrangements of transmissions characterised by the transmission driving a plurality of propellers or rotors the propellers or rotors being counter-rotating
B64D 35/08 Transmitting power from power plant to propellers or rotors; Arrangements of transmissions characterised by the transmission being driven by a plurality of power plants
B64D 35/021 for electric power plants
B64D 35/022 of hybrid-electric type
B64D 35/023 of series-parallel type
B64D 35/024 of series type
B64D 35/025 of parallel type
B64D 35/026 the electric power plant being integral with the propeller or rotor
B64D 37/00 Arrangements in connection with fuel supply for power plant
B64D 37/02 Tanks
B64D 37/04 Arrangement thereof in or on aircraft
B64D 37/06 Constructional adaptations thereof
B64D 37/08 Internal partitioning
B64D 37/10 Constructional adaptations thereof to facilitate fuel pressurisation
B64D 37/12 Constructional adaptations thereof jettisonable
B64D 37/14 Filling or emptying
B64D 37/16 Filling systems
B64D 37/18 Conditioning fuel during filling
B64D 37/20 Emptying systems
B64D 37/22 Emptying systems facilitating emptying in any position of tank
B64D 37/24 Emptying systems using gas pressure
B64D 37/26 Jettisoning of fuel
B64D 37/28 Control thereof
B64D 37/30 Fuel systems for specific fuels
B64D 37/32 Safety measures not otherwise provided for, e.g. preventing explosive conditions
B64D 37/34 Conditioning fuel, e.g. heating
B64D 39/00 Refuelling during flight
B64D 39/02 Means for paying-in or out hose
B64D 39/04 Adaptations of hose construction
B64D 39/06 Connecting hose to aircraft; Disconnecting hose therefrom
B64D 41/00 Power installations for auxiliary purposes
B64D 43/00 Arrangements or adaptations of instruments
B64D 43/02 Arrangements or adaptations of instruments for indicating aircraft speed or stalling conditions
B64D 45/00 Aircraft indicators or protectors not otherwise provided for
B64D 45/02 Lightning protectors; Static dischargers
B64D 45/04 Landing aids; Safety measures to prevent collision with earth's surface
B64D 45/06 Landing aids; Safety measures to prevent collision with earth's surface mechanical
B64D 45/08 Landing aids; Safety measures to prevent collision with earth's surface optical
B64D 47/00 Equipment not otherwise provided for
B64D 47/02 Arrangements or adaptations of signal or lighting devices
B64D 47/04 Arrangements or adaptations of signal or lighting devices the lighting devices being primarily intended to illuminate the way ahead
B64D 47/06 Arrangements or adaptations of signal or lighting devices for indicating aircraft presence
B64D 47/08 Arrangements of cameras