IPC Subgroup
H03K 17/08 Modifications for protecting switching circuit against overcurrent or overvoltage
Introduced: September 1968
Last revised: January 2006
Full Title
Electronic switching or gating, i.e. not by contact-making and -breaking > Modifications for protecting switching circuit against overcurrent or overvoltage
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- PULSE TECHNIQUE
2 direct subcodes
Child Classifications
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- H03K 17/081 without feedback from the output circuit to the control circuit
- H03K 17/082 by feedback from the output to the control circuit
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