H03K 19/2 characterised by logic function, e.g. AND, OR, NOR, NOT circuits
Introduced: September 1968
Last revised: January 2006
Full Title
Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits > characterised by logic function, e.g. AND, OR, NOR, NOT circuits
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- PULSE TECHNIQUE
Filing statistics
IPC H03K 19/2 belongs to the parent subclass H03K, which recorded 110,917 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,678 in 2013 to 10,761 in 2023 (+24%), peaking at 11,161 applications in 2020. 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
2 direct subcodes
Child Classifications
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- H03K 19/21 EXCLUSIVE-OR circuits, i.e. giving output if input signal exists at only one input; COINCIDENCE circuits, i.e. giving output only if all input signals are identical
- H03K 19/23 Majority or minority circuits, i.e. giving output having the state of the majority or the minority of the inputs
Top Applicants
Top 10 applicants by patent filingsfor class H03, 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