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Continuous tuning (H03J7/00, H03J9/00 take precedence; combination of continuous and discontinuous tuning other than for bandspreading H03J5/00) > Details

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Child Classifications

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H03J 3/04 Arrangements for compensating for variations of physical values, e.g. temperature
H03J 3/06 Arrangements for obtaining constant bandwidth or gain throughout tuning range or ranges
H03J 3/10 Circuit arrangements for fine tuning, e.g. bandspreading
H03J 3/12 Electrically-operated arrangements for indicating correct tuning
H03J 3/16 Tuning without displacement of reactive element, e.g. by varying permeability

Top Applicants

Top 10 applicants by patent filingsfor class H03, 2013–2023, worldwide · Source: EPO PATSTAT

SAMSUNG ELECTRONICS COMPANY KR 7,293
QUALCOMM US 7,085
MURATA MANUFACTURING COMPANY JP 5,982
HUAWEI TECHNOLOGIES COMPANY CN 4,641
INTEL CORPORATION US 3,863
TEXAS INSTRUMENTS US 3,409
MURATA MANUFACTURING COMPANY 2,874
SK HYNIX KR 2,644
SKYWORKS SOLUTIONS US 2,545
IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 2,437