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IPC Subclass
H01Q

ANTENNAS, i.e. RADIO AERIALS

Introduced: September 1968

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
ANTENNAS, i.e. RADIO AERIALS

Description

This classification covers the design, construction, and operation of antennas used for transmitting and receiving electromagnetic radiation in radio frequency applications. It includes various antenna types such as dipole, parabolic, helical, microstrip, phased array, and horn antennas, as well as antenna arrays and feed systems. The class encompasses both the physical antenna structures and their electrical characteristics, including impedance matching, radiation patterns, and directivity optimization. Related aspects of antenna installation, tuning mechanisms, and associated transmission line components are also included within this scope.

Filing statistics

IPC subclass H01Q recorded 196,719 patent applications worldwide between 2013 and 2023. Annual filings grew from 11,752 in 2013 to 20,067 in 2023 (+71%), peaking at 23,062 applications in 2020. The most active applicants in class H01 are TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (43,574 applications), SAMSUNG ELECTRONICS COMPANY (42,206 applications) and LG CHEM (21,383 applications).

Source: EPO PATSTAT, worldwide filings

In class comparison

H01Q ranks 7th of 14 subclasses with filings in H01, with 196,719 applications between 2013 and 2023, 4.9% of the class. Annual filings grew 71% from 2013 to 2023, above the class as a whole (+58%).

Top 10 of 14 subclasses of class H01 by patent applications, 2013–2023
RankSubclassTitleApplicationsShare
1H01L1,327,66033.2%
2H01M, Processes or Means, e.g. Batteries, for the Direct Conversion of Chemical Energy Into Electrical EnergyProcesses or Means, e.g. Batteries, for the Direct Conversion of Chemical Energy Into Electrical Energy862,00021.5%
3H01R, Electrically-Conductive Connections; Structural Associations of a Plurality of Mutually-Insulated Electrical Connecting Elements; Coupling Devices; Current CollectorsElectrically-Conductive Connections; Structural Associations of a Plurality of Mutually-Insulated Electrical Connecting Elements; Coupling Devices; Current Collectors480,97612.0%
4H01B, Cables; Conductors; Insulators; Selection of Materials for Their Conductive, Insulating or Dielectric PropertiesCables; Conductors; Insulators; Selection of Materials for Their Conductive, Insulating or Dielectric Properties250,7336.3%
5H01F, Magnets; Inductances; Transformers; Selection of Materials for Their Magnetic PropertiesMagnets; Inductances; Transformers; Selection of Materials for Their Magnetic Properties244,7536.1%
6H01H, Electric Switches; Relays; Selectors; Emergency Protective DevicesElectric Switches; Relays; Selectors; Emergency Protective Devices242,7746.1%
7H01QAntennas, i.e. Radio Aerials196,7194.9%
8H01J, Electric Discharge Tubes or Discharge LampsElectric Discharge Tubes or Discharge Lamps110,7892.8%
9H01G, Capacitors; Capacitors, Rectifiers, Detectors, Switching Devices, Light-Sensitive or Temperature-Sensitive Devices of the Electrolytic TypeCapacitors; Capacitors, Rectifiers, Detectors, Switching Devices, Light-Sensitive or Temperature-Sensitive Devices of the Electrolytic Type104,4712.6%
10H01S, Devices Using the Process of Light Amplification by Stimulated Emission of Radiation [LASER] to Amplify or Generate Light; Devices Using Stimulated Emission of Electromagnetic Radiation in Wave Ranges Other Than OpticalDevices Using the Process of Light Amplification by Stimulated Emission of Radiation [LASER] to Amplify or Generate Light; Devices Using Stimulated Emission of Electromagnetic Radiation in Wave Ranges Other Than Optical85,1332.1%

Source: EPO PATSTAT, worldwide filings

Additional Content

Limiting references

Waveguides Radiators or antennas for microwave heating

Application references

Cell structures using beam steering Communication route or path selection based on characteristics of available wireless antennas Beacons or beacon systems using radio waves Direction-finders using radio waves Circuits or components for simulating antennas, e.g. dummy antenna

Related Keywords

antennas, i.e. radio AERIALSANTENNA(S)ARRAYS of antennasantennas for radio ASTRONOMYDIPOLE antennaselectromagnetic RADIATORSantennas for RADIORESONATORS operating as antennasantennas for TELECOMMUNICATIONTELESCOPIC elements of antennas

13 direct subcodes

Child Classifications

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  • H01Q 17/00 Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
  • H01Q 23/00 Antennas with active circuits or circuit elements integrated within them or attached to them

Top Applicants

Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
  2. SAMSUNG ELECTRONICS COMPANY KR 42,206
  3. LG CHEM KR 21,383
  4. APPLIED MATERIALS US 20,441
  5. LG ENERGY SOLUTION KR 20,279
  6. SAMSUNG DISPLAY KR 19,725
  7. CHINESE ACADEMY OF SCIENCES 19,400
  8. TOYOTA MOTOR CORPORATION 18,819
  9. SGCC(STATE GRID CORPORATION OF CHINA) 18,082
  10. TOKYO ELECTRON JP 17,634