IPC Main Group
H01Q 3/00 Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ANTENNAS, i.e. RADIO AERIALS
Filing statistics
IPC H01Q 3/00 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
Related Keywords
antenna systems for SCANNING
7 direct subcodes
Child Classifications
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- H01Q 3/01 varying the shape of the antenna or antenna system
- H01Q 3/02 using mechanical movement of antenna or antenna system as a whole
- H01Q 3/12 using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q 3/22 varying the orientation in accordance with variation of frequency of radiated wave
- H01Q 3/24 varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
- H01Q 3/26 varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q 3/44 varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
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