H04J 3/02 Details (electronic switching or gating H03K17/00)
Full Title
Time-division multiplex systems (H04J14/00 takes precedence; relay systems H04B7/14; selecting techniques H04Q) > Details (electronic switching or gating H03K17/00)
Filing statistics
CPC H04J 3/02 belongs to the parent subclass H04J, which recorded 67,722 patent applications worldwide between 2013 and 2023. Annual filings declined from 7,059 in 2013 to 4,065 in 2023 (-42%), peaking at 7,268 applications in 2018. The most active applicants in class H04 are HUAWEI TECHNOLOGIES COMPANY (101,476 applications), QUALCOMM (101,139 applications) and SAMSUNG ELECTRONICS COMPANY (96,655 applications).
Source: EPO PATSTAT, worldwide filings
7 direct subcodes
Child Classifications
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- H04J 3/04 Distributors combined with modulators or demodulators
- H04J 3/06 Synchronising arrangements
- H04J 3/08 Intermediate station arrangements, e.g. for branching, for tapping-off
- H04J 3/10 Arrangements for reducing cross-talk between channels
- H04J 3/12 Arrangements providing for calling or supervisory signals
- H04J 3/14 Monitoring arrangements
Top Applicants
Top 10 applicants by patent filingsfor class H04, 2013–2023, worldwide · Source: EPO PATSTAT
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498