IPC Main Group
H01Q 21/00 Antenna arrays or systems
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ANTENNAS, i.e. RADIO AERIALS
Filing statistics
IPC H01Q 21/00 belongs to the parent subclass H01Q, which 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
5 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- H01Q 21/06 Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q 21/24 Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems
- H01Q 21/29 Combinations of different interacting antenna units for giving a desired directional characteristic
- H01Q 21/3 Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 43,574
- SAMSUNG ELECTRONICS COMPANY KR 42,206
- LG CHEM KR 21,383
- APPLIED MATERIALS US 20,441
- LG ENERGY SOLUTION KR 20,279
- SAMSUNG DISPLAY KR 19,725
- CHINESE ACADEMY OF SCIENCES 19,400
- TOYOTA MOTOR CORPORATION 18,819
- SGCC(STATE GRID CORPORATION OF CHINA) 18,082
- TOKYO ELECTRON JP 17,634