H01B |
Cablesconductorsinsulatorsselection of materials for their conductive, insulating or dielectric properties |
H01C |
Resistors |
H01F |
Magnetsinductancestransformersselection of materials for their magnetic properties |
H01G |
Capacitorscapacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices of the electrolytic type |
H01H |
Electric switchesrelaysselectorsemergency protective devices |
H01J |
Electric discharge tubes or discharge lamps |
H01K |
Electric incandescent lamps |
H01L |
Semiconductor devices not covered by class |
H01M |
Processes or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy |
H01P |
Waveguidesresonators, lines or other devices of the waveguide type |
H01Q |
Antennas, i.e. radio aerials |
H01R |
Electrically-conductive connectionsstructural associations of a plurality of mutually-insulated electrical connecting elementscoupling devicescurrent collectors |
H01S |
Devices using the process of light amplification by stimulated emission of radiation [laser] to amplify or generate lightdevices using stimulated emission of electromagnetic radiation in wave ranges other than optical |
H01T |
Spark gapsovervoltage arresters using spark gapssparking plugscorona devicesgenerating ions to be introduced into non-enclosed gases |
H02B |
Boards, substations or switching arrangements for the supply or distribution of electric power |
H02G |
Installation of electric cables or lines, or of combined optical and electric cables or lines |
H02H |
Emergency protective circuit arrangements |
H02J |
Circuit arrangements or systems for supplying or distributing electric powersystems for storing electric energy |
H02K |
Dynamo-electric machines |
H02M |
Apparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systemsconversion of dc or ac input power into surge output powercontrol or regulation thereof |
H02N |
Electric machines not otherwise provided for |
H02P |
Control or regulation of electric motors, electric generators or dynamo-electric converterscontrolling transformers, reactors or choke coils |
H02S |
Generation of electric power by conversion of infrared radiation, visible light or ultraviolet light, e.g. using photovoltaic [pv] modules |
H03B |
Generation of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching mannergeneration of noise by such circuits |
H03C |
Modulation |
H03D |
Demodulation or transference of modulation from one carrier to another |
H03F |
Amplifiers |
H03G |
Control of amplification |
H03H |
Impedance networks, e.g. resonant circuitsresonators |
H03J |
Tuning resonant circuitsselecting resonant circuits |
H03K |
Pulse technique |
H03L |
Automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses |
H03M |
Coding, decoding or code conversion, in general |
H04B |
Transmission |
H04H |
Broadcast communication |
H04J |
Multiplex communication |
H04K |
Secret communicationjamming of communication |
H04L |
Transmission of digital information, e.g. telegraphic communication |
H04M |
Telephonic communication |
H04N |
Pictorial communication, e.g. television |
H04Q |
Selecting |
H04R |
Loudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducersdeaf-aid setspublic address systems |
H04S |
Stereophonic systems |
H04W |
Wireless communication networks |
H05B |
Electric heating electric light sources not otherwise provided forcircuit arrangements for electric light sources, in general |
H05C |
Electric circuits or apparatus specially designed for use in equipment for killing, stunning, enclosing or guiding living beings |
H05F |
Static electricitynaturally-occurring electricity |
H05G |
X-ray technique |
H05H |
Plasma technique production of accelerated electrically-charged particles or of neutronsproduction or acceleration of neutral molecular or atomic beams |
H05K |
Printed circuitscasings or constructional details of electric apparatusmanufacture of assemblages of electrical components |
H10B |
Electronic memory devices |
H10D |
Inorganic electric semiconductor devices |
H10F |
Inorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation |
H10H |
Inorganic light-emitting semiconductor devices having potential barriers |
H10K |
Organic electric solid-state devices |
H10N |
Electric solid-state devices not otherwise provided for |
H99Z |
Subject matter not otherwise provided for in this section |