H03L 7/06 using a reference signal applied to a frequency- or phase-locked loop
Introduced: January 1980
Last revised: January 2006
Full Title
Automatic control of frequency or phase; Synchronisation > using a reference signal applied to a frequency- or phase-locked loop
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRONIC CIRCUITRY
- Subclass:
- AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
Filing statistics
IPC H03L 7/06 belongs to the parent subclass H03L, which recorded 21,048 patent applications worldwide between 2013 and 2023. Annual filings declined from 2,063 in 2013 to 1,671 in 2023 (-19%), peaking at 2,107 applications in 2014. 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
3 direct subcodes
Child Classifications
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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