H03 ELECTRONIC CIRCUITRY
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
Description
H03 encompasses the design, construction, and operation of electronic circuits and circuit components that process, generate, amplify, or control electrical signals. This class covers fundamental circuit elements including resistors, capacitors, inductors, transformers, and semiconductor devices, as well as complete circuit assemblies for applications such as amplification, oscillation, modulation, and switching. The classification includes circuits for signal processing, power conversion, and control functions across a broad range of frequencies and power levels. H03 excludes telecommunications systems and specific applications (covered in other H-series classes) but forms the foundational technology underlying most electronic devices and systems.
Filing statistics
IPC H03 recorded 337,438 patent applications worldwide between 2013 and 2023, summed across its 10 subclasses. Annual filings grew from 27,775 in 2013 to 32,028 in 2023 (+15%), peaking at 32,863 applications in 2019. The most active applicants in class H03 are QUALCOMM (5,625 applications), SAMSUNG ELECTRONICS COMPANY (5,496 applications) and MURATA MANUFACTURING COMPANY (5,478 applications).
Source: EPO PATSTAT, worldwide filings
In class comparison
H03 comprises 10 subclasses with filings; the largest is H03K with 32.9% of the class's 337,438 applications between 2013 and 2023.
| Rank | Subclass | Title | Applications | Share |
|---|---|---|---|---|
| 1 | H03K, Pulse Technique | Pulse Technique | 110,917 | 32.9% |
| 2 | H03M, Coding, Decoding or Code Conversion, in General | Coding, Decoding or Code Conversion, in General | 65,789 | 19.5% |
| 3 | H03H, Impedance Networks, e.g. Resonant Circuits; Resonators | Impedance Networks, e.g. Resonant Circuits; Resonators | 56,431 | 16.7% |
| 4 | H03F, Amplifiers | Amplifiers | 50,749 | 15.0% |
| 5 | H03L, Automatic Control, Starting, Synchronisation or Stabilisation of Generators of Electronic Oscillations or Pulses | Automatic Control, Starting, Synchronisation or Stabilisation of Generators of Electronic Oscillations or Pulses | 21,048 | 6.2% |
| 6 | H03G, Control of Amplification | Control of Amplification | 13,146 | 3.9% |
| 7 | H03B, Generation of Oscillations, Directly or by Frequency-Changing, by Circuits Employing Active Elements Which Operate in a Non-Switching Manner; Generation of Noise by Such Circuits | Generation of Oscillations, Directly or by Frequency-Changing, by Circuits Employing Active Elements Which Operate in a Non-Switching Manner; Generation of Noise by Such Circuits | 11,859 | 3.5% |
| 8 | H03D, Demodulation or Transference of Modulation From One Carrier to Another | Demodulation or Transference of Modulation From One Carrier to Another | 4,960 | 1.5% |
| 9 | H03C, Modulation | Modulation | 1,283 | 0.4% |
| 10 | H03J, Tuning Resonant Circuits; Selecting Resonant Circuits | Tuning Resonant Circuits; Selecting Resonant Circuits | 1,256 | 0.4% |
Source: EPO PATSTAT, worldwide filings
Related Keywords
10 direct subcodes
Child Classifications
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- H03B GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION 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 CIRCUITS; RESONATORS
- H03J TUNING RESONANT CIRCUITS; SELECTING 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
Top Applicants
Top 10 applicants by patent filings, 2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 5,625
- SAMSUNG ELECTRONICS COMPANY KR 5,496
- MURATA MANUFACTURING COMPANY JP 5,478
- HUAWEI TECHNOLOGIES COMPANY CN 3,383
- INTEL CORPORATION US 3,091
- TEXAS INSTRUMENTS US 3,070
- MURATA MANUFACTURING COMPANY 2,722
- SKYWORKS SOLUTIONS US 2,290
- SEIKO EPSON CORPORATION 2,177
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,158